The mother and boyfriend of Stavian Driver were arrested in March for injury to a child, but in August, Stavian's death was ruled a homicide.
Based on gathered information, the murder appears to be related to a dispute concerning the victim's vehicle, which had been stolen three days earlier.
APD says there are currently no suspects in custody, but that they believe there is no threat to the public and that this was an isolated incident.
On Wednesday the city’s watershed protection department is going to begin cleaning up the tunnel. They aim to have a barrier over the tunnel blocking human entry by summertime.