The mother of one of the teen suspects in the murder of a Penn State student has been detained, sources told NBC10 on Thursday. The woman’s arrest came a day after her 16-year-old son, Azzubair Outen-Fleming, was arrested by the U.S. Marshals Service in Colorado in connection with the early Jun e murder of 22-year-old William “Billy” Schmidt in South Philadelphia. Moreover, in a news conference on Wednesday, District Attorney Larry Krasner announced that Outen-Fleming’s stepfather, identified as Donte Abdulmalik, was in custody for trying to help the teen hide from law enforcement. Abdulmalik was charged with hindering apprehension, obstruction of justice and tampering with evidence. A second 16-year-old suspect, Kaiseem Smith, was still a fugitive as of Thursday morning. Kaiseem Smith stands 4 feet, 10 inches and weighs approximately 110 pounds. He is a resident of Wilmington, Delaware, and is known to frequent the 27th and Reed streets area of Philadelphia. Officials said the teen should be considered armed and dangerous. According to Krasner, investigators believe Smith is the one who pulled the trigger. Schmidt, 22, was shot and killed just steps from his front door around 1:30 a.m. on June 6, 2026, near 20th and Durfor streets in South Philadelphia, police said. According to his family, Schmidt was preparing to enter his senior year at Penn State, where he was studying communications. Video from a neighbor’s porch camera shows two young men speaking with Schmidt, who is off camera. Seconds later, Schmidt appears to follow them into the street. The video also captured Schmidt saying, “Give me back my phone.” Moments later, a gunshot can be heard. On Tuesday, the Philadelphia Police Department issued arrest warrants for Smith and Outen-Fleming in connection with the fatal shooting. Officials said they believe Outen-Fleming left Philadelphia around June 11, five days after Schmidt’s murder. The U.S. Marshals were able to figure out that Outen-Fleming had distant family members who lived in Colorado and started surveilling a home on the 4200 block of Loomis Avenue in Colorado Springs on Wednesday. Then, around 8:30 p.m. on July 1, marshals arrested Outen-Fleming inside the house despite efforts to hide his identity, officials said. Outen-Fleming is currently being held at Zebulon Pike Youth Center while waiting for extradition. Smith and Outen-Fleming are expected to face multiple charges including murder, criminal conspiracy, robbery and others, and they will be charged as adults, the district attorney said. It is unclear if Outen-Fleming’s mother is facing any formal charges. NBC10 reached out to police to learn more information regarding her arrest. Tips can be called in to the U.S. Marshals Philadelphia Tipline at 1-866-865-TIPS(8477) or at www.usmarshals.gov. ...read more read less