* (Disclaimer: The content in this video is intended for educational and informational purposes only) Jacksonville, Florida — On August 13, 2025, at 1:50 a.m., 30-year-old Brian Gillis set fire to the exterior wall of a neighbor’s home. At 6:20 a.m., Gillis told his neighbor he had committed an arson. One of Gillis’ family members called police, requesting Gillis be held for a mental health evaluation. A JSO officer and a partnered mental health clinician arrived and spoke with Gillis’ family and neighbors. The officer learned Gillis left the home soon after he arrived. Officers announced on police radio to be on the lookout for Gillis and shared all known information about him, including the arson. At 9:19 a.m., Officer Bumgarner saw Gillis running along East 25th Street near Buckman Street. The officer armed himself with his Taser and yelled at Gillis to stop. Gillis was holding a large knife and turned to the officer, yelling at him to back off. Gillis then turned to run in a residential area with the knife still in his hand. Officer Bumgarner dropped his Taser, pulled out his JSO-issued handgun and yelled at Gillis to drop the knife. Gillis did not comply, and the officer fired his gun, striking Gillis. Gillis fell onto the sidewalk, still holding the knife. Other officers arrived on scene and were able to remove the knife from Gillis’ hand before rendering medical aid. When paramedics arrived on scene, they assumed emergency medical care. Paramedics later pronounced Gillis deceased on scene. Crime scene detectives responded to the scene during the investigation and collected Gillis's knife from where it was placed after Gillis was disarmed. ⭐⭐⭐⭐⭐ Special thanks to Shout-Out Supporters on Patreon: - 'DIY Solar Power with Will Prowse' - Bobby Roach - Sarin Dipity - Becky Hopkins - Bryan Wilson - Wolfey Estep - Bagpiper Joshua Agee - thomas - 'PrussianBlue' - Cody Stephens - Daniel G - David, Guershom - 'K9 Kampers with Alfredo' - Troy Polansky - Tulla Belle - 'quadrakyiro' - Scott Mackin - "John B. GunsSaveLife" - david wallace - '10izshoe' - 'DerLitti86' - Brice Danos - 'PhlyDaily' - Brandon M. - Jesse - Jeff Short - RayJayOB - Josef Rex - 'Jun' - 'Xenik' - 'GotsNoGroove Cheryl' - James Pringle - Kelly Goodwin - 'Dawesenm' - 'Brother.Legal' - Paul Rohrbaugh - Zach Williams - Michael R Sheffield - Rich Biggs - 'AccuShoot.com' - Lisa Overly - 'Necko' - Gerardo Flores - 'coco Coco' ⭐⭐⭐⭐⭐ Support us on Patreon: https://www.patreon.com/PoliceActivity Follow us on X: https://x.com/Police_Activity - Links to the Best Dash Cams you can buy. Viofo A229 Pro 4K HDR: https://amzn.to/4dYwN2b Garmin Mini 3 1080p: https://amzn.to/41hmktx Vantrue N5 2.7K: https://amzn.to/4dYxgBt Nexar Pro 1080p: https://amzn.to/3TpyL3y Thinkware X1000 2K: https://amzn.to/3Bby9Ij BlackVue DR970X 4K: https://amzn.to/3Zl7Fy3 🛍️ Check out our Amazon store: https://www.amazon.com/shop/PoliceActivity 🛍️ Disclosure: Please note that we will receive a small commission from purchases made through our Amazon store. This is at no cost to you. It helps support our channel and allows us to continue creating content for you. Your support is highly appreciated! Timestamps: 0:00 - Security Camera Footage 0:37 - Gillis's Family Member's 911 Call Requesting Police Assistance 2:35 - Bodycam: Officer Rousselle 7:56 - Bodycam: Officer Bumgarner 9:59 - Bodycam: Officer Summers 11:10 - Patreon Supporters