The man previously considered a “person of interest” in a fatal shooting earlier this week has become a suspect in the case, facing multiple murder charges.

Police spokesman MJ Thim said Saturday that Randall Igou, 27, is charged with first-degree and second-degree murder, as well as evidence tampering, in the shooting of 65-year-old Gregory Gill.

Thim said Igou didn’t have any prior relationship with Gill when he entered the Aurora Paint Co. store on the 3600 block of Arctic Boulevard at about 7:40 a.m. Sunday, apparently planning to rob it.

“We know that Igou walked into the business on Sunday morning and shot Mr. Gill, stole the cash box and then stole his vehicle,” Thim said.

Gill’s shooting wasn’t reported until Monday morning, when an employee reported finding him with a gunshot wound to the head. He was declared dead at the scene.

Earlier this week, police had asked for help finding Gill’s vehicle, a white 2006 Kia Optima. The Kia was found off Foxhall Drive in east Anchorage Monday afternoon, and a KTVA camera crew saw police take Igou into custody after he allegedly fled into nearby Cheney Lake.

Officers recovered the store’s cash box from the trunk of the stolen Kia, according to Thim.

Thim said surveillance video from the area near the paint store, as well as tips from the public, helped “a great deal” in assembling the case against Igou.

Court records show Igou, who was originally arrested on vehicle-theft charges, now held without bail on the new murder charges in the case.