SPOKANE, Wash. -

Spokane Police Major Crimes detectives have developed probable cause to arrest 26-year-old Brandon Mellon for a fatal shooting Friday night at an apartment in the 2200 block of North Astor. 

Detectives will be requesting a charge of 1st Degree Murder from the Spokane County Prosecutor.

After detectives interviewed witnesses and followed up on other leads, Mellon became a person of interest in the homicide that occurred on January 3 at 2228 N. Astor.

Through inter-agency collaboration, detectives developed information that Mellon was at a motel in Pasco, WA and had accidentally shot himself in the leg. A gun was recovered at the scene. Mellon was transported to a hospital in Portland, OR with critical injuries and is being treated for those injuries under supervision. Once detectives receive a warrant, they will begin work on the extradition process and officially place Mellon under arrest.

The identity of the homicide victim and the official cause of death will be released by the Spokane County Medical Examiner.