The Baton Rouge Police Department said Erick Scott, 21, was arrested Tuesday morning in the death of Justice Thompson, 17. Thompson was found lying in the 2000 block of Adams Street on Oct. 16, 2011 around 2:30 a.m. Police said he had been shot multiple times, including to the head, while sitting in a parked vehicle. He was taken to an area hospital, where he later died. Scott has been charged with first-degree murder in Thompson's death. He was already in the East Baton Rouge Parish Prison on a first-degree murder charge in the death of Kevin Johnson, 21, of Denham Springs. Investigators said Johnson was in the passenger seat of a car stopped at the intersection of North Acadian and South Choctaw Drive when the gunman walked up and opened fire on Feb. 14 around 5:30 p.m. Detectives said the victim was hit several times and driven to Baton Rouge General, where he died.