ST. LOUIS – A teenager is behind bars and faces 17 criminal charges in connection with a deadly crash during Mother’s Day weekend in St. Louis.

Prosecutors have charged Marshawn Stepney, 18, with a slate of felonies, including second-degree murder, armed criminal action, leaving the scene of an accident, and more offenses.

Investigators say five family members died and two others suffered serious injuries after the crash on May 6 along Delmar Boulevard in west St. Louis. Police say the victims were T-boned in a minivan by someone driving a stolen Jeep. The driver was trying to elude police while speeding.

Police say the Jeep was stolen last month out of Herculaneum, Missouri, and associated with multiple crimes. That included hitting another car that evening, during which people in the Jeep allegedly fired several shots at another vehicle.

The suspect ran into an alley after the crash.

Based on the preliminary investigation, the driver of the stolen Jeep tried to flee police going east on Delmar. They ran over spike strips that were placed by police east of Skinker.

The strips are supposed to deflate a vehicle’s tires. They do not appear to have worked because the suspect’s vehicle traveled around two blocks before colliding with another vehicle. Police say the stolen Jeep was going 82 mph.

“This collision occurred less than 29 seconds after the spike strips were deployed, and the distance traveled was under two city blocks,” said St. Louis Police Chief John Hayden. “At this point, we have no evidence to suggest that our officers were involved in a vehicle pursuit or the use of spike strips contributed to the crash. It shows solely on the criminal conduct of the suspects in the jeep.”

Aaron Piggee lost his five family members in the crash: his mom Angelique Simmons, sister Rhonda Simmons, two uncles Luther Simmons, and 11-year-old niece Takara Thompson. Two other children were hurt in the collision.

“We have to bury five people, and we have my niece who is 11 years old,” said Piggee. “Didn’t even get the chance to experience homecoming, prom, and walk across the stage like I did. That hurts.”

In response to this crash, the St. Louis city and county chapters of the NAACP want to talk with local police chiefs. The NAACP says data collected on police pursuits makes a strong case for opting not to pursue vehicles. They’re calling it a “public safety emergency.”