Incident
Trooper Branden Sisca and Trooper Martin Mack were struck and killed by a suspected drunk driver near mile marker 18 on southbound I-95 in Philadelphia shortly before 1:00 am.
They had stopped a female driver for speeding and had interacted with her for less than one minute when they were notified of a pedestrian walking along the interstate. Due to their short interaction before being dispatched to the higher priority pedestrian call, the troopers had not observed any signs of impairment before giving her a warning. They then responded to the pedestrian call and located the man on the interstate. They were assisting him into the back of their patrol vehicle when an approaching car drove by and attempted to pass the police vehicle on the shoulder. The vehicle fatally struck both troopers and the pedestrian they were assisting.
The driver who struck them pleaded guilty to three counts each of third-degree murder and homicide by vehicle while driving under the influence and was sentenced to 27 1/2 to 60 years in prison. She was the same driver that had been pulled over by the troopers several minutes earlier.
Trooper Sisca had served with the Pennsylvania State Police for 13 months and was assigned to Troop K.
Survivors
He is survived by his expectant wife.
In Our Keeping
- Permanent identifier
BO-US-PA-37373A70- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
You barely got started.
Trooper Sisca gave the Pennsylvania State Police 1 year.
Thank you for your service to the people of Pennsylvania. Gone but never to be forgotten.
Rest easy, Trooper Sisca.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Trooper Branden Tyler Sisca is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.
In PA, 597 of 1,261 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 47.3% of this state's fallen. That is 6.9 percentage points below the national rate of 54.2%.
At Pennsylvania State Police, 34 of 87 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 39.1% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Branden Tyler Sisca's cause is highlighted.
How Branden Tyler Sisca Compares
Offender Outcome
27 1/2 to 60 years in prison
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Branden Tyler Sisca is highlighted in Mar.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Branden Tyler Sisca was killed by automobile; alcohol involved.
Incident Location
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