HAMMOND - Law enforcement officials in Tangipahoa Parish say they're looking for the man behind a fatal shooting in Hammond on July 31. 

The Tangipahoa Parish Sheriff's Office says 38-year-old Stephen Brown is their lead suspect in the murder of 19-year-old Leroy Sims III. 

     > UPDATE: Deputies said Brown turned himself in this weekend. 

According to a news release, Sims was shot multiple times on Monday night around 9:40 p.m. and pronounced dead at the scene. 

Officials belive illegal drug activity was behind the murder. 

Brown is still at large and attempting to elude capture.