Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more

A PubMed-indexed study result reports that traffic fatalities were, on average, 14.3% higher on the day after the 10 deadliest shootings in its 2008–2023 sample—an estimated 19.9 additional deaths nationally (95% confidence interval: 12.7–27.1). That is a reported short-term association, not proof that shootings caused crashes or that the increase follows every mass shooting.

What the study found—and the scope of the estimate

The study authors reported the next-day increase using traffic-fatality data from the Fatality Analysis Reporting System (FARS). The estimate applies to the day after a selected set of 10 especially deadly shootings between 2008 and 2023. It is not an annual total, a long-term trend, or an estimate for every shooting.

The reported 14.3% average increase corresponds to 19.9 additional traffic deaths nationally, with a 95% confidence interval of 12.7 to 27.1 additional deaths. A confidence interval conveys uncertainty around the estimate; it does not mean that the same number of extra deaths occurred after each event.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

What does a next-day increase mean?

An association, not a demonstrated cause

The result describes a difference in traffic fatalities after the sampled events. By itself, it does not establish that the shootings caused that difference. The available study summary does not establish the exact rule used to select the 10 shootings, the model specification, which potential confounders were adjusted for, or a mechanism linking the events to traffic deaths. Without those details, stronger causal claims are not supported.

#1 Best Overall
Sale
ROVE R2-4K Dual Dash Cam Front and Rear, STARVIS 2 Sensor, Free 128GB Card
  • UPSCALED 4K FRONT + 1080P REAR DUAL DASH CAM: The ROVE R2-4K DUAL records the road ahead and behind at the same time. The front camera captures at 2.5K (QHD) and intelligently upscales to 4K (2160P) for higher-detail playback, while the rear camera records at Full HD 1080P. This is upscaled 4K, not native 4K, engineered to show sharper everyday detail than standard 1080P dash cams, so you can read license plates, signs, and surroundings in front and rear footage.
  • SONY STARVIS 2 IMX675 SENSOR + SUPER NIGHT VISION: The front camera uses a Sony STARVIS 2 IMX675 5MP image sensor with a wide F1.5 aperture (F1.8 rear) and HDR to pull in more light for clearer low-light footage. This advanced sensor enhances nighttime clarity, helping capture license plates, road signs, and surrounding vehicles with greater reliability when driving after dark, through tunnels, or in dusk and dawn conditions.
  • ULTRA FAST 5.8GHz WIFI/ UP TO 20MB/s DOWNLOAD SPEED: With its built-in dual-band 5.8GHz and 2.4GHz WiFi, you can use the ROVE dash cam app to view and manage dash cam recordings instantly on your iPhone and Android smartphone. Using the ROVE app, download your recorded videos directly to your smartphone at up to 20 MB/sec, then easily share them on social media with friends and family. Additionally, manage camera settings and update the latest firmware over-the-air via the ROVE App.
  • CAR CAMERA WITH GPS: The new front and rear dashcam comes with built-in GPS, which enables you to view real-time live speed and compass on the 3” IPS wide camera screen. It records precise driving routes, locations, and speed stamps directly on the video so you can watch dashcam videos with GPS data using ROVE's free GPS Player on your PC or Mac & get additional evidence when you need it.
  • FEATURES WITH STATE-OF-THE-ART TECHNOLOGY INCLUDED: Experience peace of mind with this front and rear car dash cam. It comes with a free 128GB microSD card and offers advanced features such as an f1.5 aperture, motion detection, G-sensor, seamless loop recording, emergency video lock, screen saver, live speed and compass direction, voice guidance, ring of threads for optional CPL filter, a built-in supercapacitor for extended product life, support for up to 1TB microSD cards, and many more.

A narrow time window

The reported comparison concerns the day after a shooting. It should not be extended to later days or presented as evidence of a persistent rise in road deaths. Nor does the estimate show that a particular shooting will be followed by a predictable number of traffic fatalities.

Why “mass shooting” counts can differ

There is no single universal threshold for a mass shooting. A 2024 U.S. Surgeon General’s advisory contrasts two definitions: a Congressional Research Service definition it cites, based on at least four firearm-killed victims, and a Gun Violence Archive definition it cites, based on four or more people shot or killed, excluding the shooter. One counts fatal events meeting a victim threshold; the other also includes events in which fewer than four people die.

Rank #2
Sale
REDTIGER 4K STARVIS 2 Dashcam Front Rear, 5GHz WiFi 20MB/s, Free 128GB Card
  • [4K+1080P Dual Recording] REDTIGER F7N TOUCH captures your drive journey in stunning 4K UHD resolution with STARVIS 2 sensor 170° wide-angle view for the front dash cam and 1080P FHD resolution 140° wide-angle for the rear car camera. Equipped with WDR and HDR technology, the enhanced super night vision ensures better visibility even in low-light situations, providing you with reliable recordings day and night.
  • [Voice Control & Touch Screen] F7NTOUCH dashcam features voice commands, allowing for hands-free control of your 4K car camera, which enhances safety by minimizing distractions. The dual camera dash cam also has smart touchscreen that can lock emergency video, turn on wifi, and capture scenery with one click. Redtiger also retains the buttons, multiple control methods are integrated.
  • [Built-in GPS & 5.8GHz WiFi] Both Android and IOS users can connect to dashcam WiFi via the REDTIGER Cam app. Although the dash cam is installed wired, you can enjoy wireless control on your smartphone, faster 20MB/s download speed and share your driving experiences in real-time with friends and insurance companies. Car recorder built-in GPS provides traceable location, speed, and accurate route in the recordings.
  • [Loop Recording & G-Sensor] REDTIGER F7N TOUCH dual channel dash cam automatically overwrites the oldest footage when the memory is full, ensuring endless recording with the included 128GB card. With a built-in G-sensor that detects sudden movements or impacts, it automatically locks and protects the associated footage when an event is detected on the road, ensuring it won't be overwritten during loop recording.
  • [24-hour Parking Monitoring*] REDTIGER Car dashboard camera offers G-Sensor Parking Mode that automatically record when it detects any collisions or sudden motion while vehicles is parked. Time Lapse Parking Mode provides continuous surveillance by offering a condensed overview of any events that may occur during parking periods. *Please note that the parking monitoring function requires a separate hardwire kit.
Measure Definition or scope What it counts
Mass shooting under the CRS definition cited by the Surgeon General At least four victims killed by firearms in a multiple-homicide event Fatal events that meet the killed-victim threshold
Mass shooting under the GVA-based definition cited by the Surgeon General At least four people shot or killed, excluding the shooter Events meeting a shot-or-killed threshold, including some with fewer than four deaths
FBI active-shooter incident “One or more individuals actively engaged in killing or attempting to kill people in a populated area.” Incidents meeting the FBI’s active-engagement definition; there is no fixed victim-count threshold

These categories answer different questions and should not be treated as interchangeable. The study’s selection of the 10 deadliest shootings is also not a general count of mass shootings under either definition.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

How the broader numbers fit—and what they do not show

The Surgeon General’s 2024 advisory, summarizing Gun Violence Archive data under its broader definition, reported more than 600 mass-shooting incidents annually in 2020–2023, compared with an average below 400 annually in 2015–2018. The advisory also estimated that mass-shooting deaths represented about 1% of firearm-related deaths under the definitions and source data described in its notes. Neither figure is an FBI active-shooter count, and neither measures traffic deaths.

Rank #3
galphi 4K Dash Cam Front, 5GHz WiFi, 32GB Card Included, Mini Dashcam
  • 💖💖【Important Note】Due to soaring memory chip costs, many brands have eliminated memory cards entirely, requiring a separate purchase. However, to save you the hassle of buying extra accessories, we are resisting cost pressures without raising our dashcam's price. Starting June 26, 2026, this camera will include a 32GB memory card (previously 64GB) so you can still use it out of the box. For extended storage, we highly recommend purchasing a Class 10, U3, and V30 (or higher) memory card.
  • 【4K 2160P Resolution Dash Cam】Capture every drive in stunning 4K UHD resolution with the Galphi front dash cam, featuring a 160-degree wide-angle lens for clear, cinematic video footage. Ideal for family cars, new drivers, and Uber/Lyft drivers, it provides reliable video evidence for accident disputes and insurance claims.
  • 【Advanced 5GHz WiFi with App】 Featuring cutting-edge 5GHz WiFi and a free app, the video download speed reaches up to 8MB/s, compared to just 2MB/s with the 2.4GHz option. This greatly reduces download times and minimizes lag during video playback.
  • 【No Screen & Less Distraction】This dash camerma features a screen-free design, minimizing distractions while you drive so you can stay focused on the road. Enjoy peace of mind knowing your camera is recording without taking your attention away from the journey.
  • 【Compact and Super Easy to Install】The dash cam's slim and compact design ensures it won't obstruct your view. With easy installation and clear, detailed instructions included, even first-time users can set it up without any hassle.

The FBI reported 24 active-shooter incidents in 2024, down from 48 in 2023. These are counts under the FBI’s definition, not a competing tally of all events called mass shootings by other sources.

For context, the Centers for Disease Control and Prevention (CDC) reported more than 48,000 firearm-related deaths in 2022; more than half were suicides and more than four in ten were firearm homicides. Those totals cover firearm deaths broadly. They are not counts of mass-shooting victims and should not be used as a substitute for one.

Rank #4
Sale
REDTIGER F7NP 4K Dash Cam Front Rear, STARVIS 2 Sensor, Free Card Included
  • [4K+1080P Front & Rear Recording] REDTIGER F7NP dash cam captures every detail with stunning 4K front and 1080P rear video. Featuring the advanced STARVIS 2 sensor plus the 170° front and 140° rear wide-angle lens, this dash camera delivers sharper images, balanced lighting, and reliable evidence day or night. Ideal for commuting, road trips, rideshare drivers, and new drivers.
  • [STARVIS 2 Sensor & WDR Night Vision] Equipped with the advanced STARVIS 2 sensor, F1.5 large aperture, and 6-layer optical lens, F7NP 4K dual dash cam delivers clear, high-contrast footage in any lighting. WDR and HDR technology balance highlights and shadows, ensuring sharp night vision and crisp details day or night, providing reliable evidence and enhanced safety for every drive.
  • [Built-in 5.8GHz WiFi & Smart App] Connect your smartphone to the dashcam’s built-in 5.8GHz WiFi to enjoy ultra-fast downloads up to 20MB/s. Using Redtiger Cam app, you can preview, download, and replay videos in real time, check GPS ata (route, speed, and location), and manage settings effortlessly, making it simple to review footage and share important moments.
  • [Loop Recording & Free Memory Card] This car camera supports seamless loop recording to ensure continuous coverage without interruption. Older files are automatically overwritten when storage is full, while important events are safely locked. A free memory card is included, giving you ample space for 4K recordings and allowing you to use the camera right out of the box.
  • [24/7 Parking Mode* & G-Sensor] Enjoy round-the-clock protection with two parking modes: time-lapse recording for continuous low-bitrate monitoring and G-sensor mode that records when collision is detected. The car security camera with G-sensor automatically locks important clips, ensuring crucial evidence is safely preserved even while your vehicle is parked.(*Hardwire kit needed.)
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

How to compare traffic and firearm statistics responsibly

Before comparing totals, check that the figures cover the same population and measure the same outcome. A count of all firearm deaths is different from firearm homicides, deaths in incidents meeting a chosen mass-shooting definition, or traffic fatalities. Counts also differ from rates, which relate deaths to a population or another denominator.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
  • State the definition. Give the event threshold and source; do not label counts from different definitions as if they were equivalent.
  • Match the scope. Identify the years, geography, age range, and whether the figure is a count or a rate.
  • Keep outcomes separate. Do not add or compare firearm deaths and traffic deaths as though they were the same category.
  • Keep the study window visible. The reported traffic estimate is for the day after 10 selected shootings, not an annual or population-wide effect.

The CDC’s WISQARS interface can compare selected causes of injury death and years. It notes that some estimates may be unstable or suppressed, so not every displayed value supports a reliable comparison.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.