SPOKANE, Wash. -

Spokane Police say they've solved the murder of David Deponte, who was found dead in a West Central alley in December 2012.

Major Crimes detectives have been working for a year and a half to identify the suspect in this case and anticipate a warrant for first degree murder will be issued against 31-year-old Bud Brown Monday evening.

Brown, who is from the Spokane area, is currently being held in federal prison in Florida on a federal firearms charge.

Police say there were no witnesses to the shooting making this a difficult case to solve. They tracked down who was with the victim before he was killed and Brown's name came up several months ago.

Police say the shooting was not directly gang-related.

“The people involved have gang ties but I believe this is more of a dispute between two people referencing a female and not gang motivated directly, " Spokane Police Lieutenant Mark Griffiths said.

Police anticipate a warrant will also be issued for 28-year-old Alicia Sweet for 1st degree rendering criminal assistance related to Deponte's killing. Sweet allegedly was untruthful to police and disposed of the gun. Sweet is from the Spokane area but police have been unable to find her.

The Spokane County Prosecutor, once a warrant is issued for Brown, will determine when he will be extradited back from Florida to face the murder charge.