Ardmore
News Feed
Events
Local Businesses
Classifieds
Crime & Safety

Main Line Stabbing Suspect Was Wanted For Armed Robbery From 2022: Police

He got into a crash on Interstate 476. Then, he and several men assaulted the other driver, police said.

| Updated
A man accused of stabbing another driver after a crash on the Main Line this weekend was wanted for an armed robbery four years ago at a Delaware county convenience store, authorities said. (Upper Chichester Police)

LOWER MERION, PA — A man accused of stabbing another driver after a crash on the Main Line this weekend was wanted for an armed robbery four years ago at a Delaware county convenience store, authorities said.

Samuel Marquez rear-ended another vehicle Sunday while driving a U-Haul on the Blue Route (Interstate 476) in Lower Merion. He and several men then assaulted the other driver, leading Marquez to stab the victim in the abdomen, according to State Police.

Subscribe

An ambulance took the victim to Lankenau Medical Center. Police did not share their condition.

Marquez and the other suspects fled the scene before police found the U-Haul at a Sunoco on Lancaster Avenue in Bryn Mawr. He ran away before officers arrested him at the nearby Austin Memorial Park, police said.

Villanova University was put under lockdown as the incident unfolded, according to The Villanovan.

Marquez, 40, of Philadelphia, was charged with aggravated assault, terroristic threats, weapons counts, evading arrest and other offenses. He was held on $1 million bail, with a preliminary hearing set for Sept. 15.

No one else has been charged in this incident as of Wednesday morning.

Marquez was also wanted for armed robbery. In November 2022, he robbed the Royal Farms convenience store on Market Street in Upper Chichester, police said.

He was charged on a warrant in March 2023, after Upper Chichester Police identified him as the suspect.

Marquez doesn't have an attorney listed in online court records who can comment on his behalf.

The stabbing investigation remains ongoing. Anyone who may have witnessed the incident or has relevant information can call State Police at 215-452-5216 and reference incident number PA2026-1146481.

More from Ardmore
News | 21h
News | 5d
News | 6d
See more on Patch >

Sign up for free local newsletters and alerts for the
Ardmore Patch

Patch.com is the nationwide leader in hyperlocal news.
Visit Patch.com to find your town today.

©2026 Patch Media. All Rights Reserved

Do Not Sell My Personal Information