The second suspect wanted for the deadly shooting of a Penn State student in South Philadelphia surrendered to police Thursday, per CBS News.

Teenager Kaiseem Smith, surrendered just one day after U.S. Marshals arrested Azzubair Outen-Fleming in Colorado. The two suspects, both 16 years old, are charged with a plethora of counts including murder, criminal conspiracy, illegal possession of a firearm, and robbery.

Philadelphia District Attorney Larry Krasner announced the stepfather of Outen-Fleming was also charged in the shooting. He was charged with hindering apprehension, tampering with evidence, and obstruction of justice. He allegedly helped Outen-Fleming flee the area.

U.S. Marshals said Outen-Fleming fled Pennsylvania on June 11 en route to Colorado, where he has family. He was taken into custody in Colorado Springs on Wednesday evening.

Penn State student Billy Schmidt was shot and killed during an alleged robbery in South Philly near him home on June 6, according to police. Before the incident, Outen-Fleming approached him and took his phone.

Surveillance video from that night shows Schmidt chasing them and asking for his phone back before one of the suspects fired a weapon, fatally shooting Schmidt in the chest. He was rushed to Penn Presbyterian Medical Center, where shortly after, he was pronounced dead.

Schmidt was a fourth-semester student at Penn State World Campus, studying digital journalism and media.