Anchorage police temporarily closed part of Cheney Lake Park Saturday, where divers were seeking “potential evidence” in a man’s fatal shooting last week.

Police announced their return Saturday morning to the park, along with members of the Anchorage Fire Department dive team, in connection with the Sept. 10 death of 65-year-old Gregory Gill at the Aurora Paint Company on Arctic Boulevard. Randall Igou, 27, faces murder charges in what police said began as an armed robbery.

Anchorage police and fire officials visited Cheney Lake on Saturday, Sept. 23, 2017 to seek

AFD divers had set up tents along the shore and were launching small boats onto the lake Saturday morning. Police at the scene wouldn't answer questions regarding the search.

Police spokeswoman Nora Morse said in an email that the search ended at about 3 p.m. She declined to say what police had been looking for or whether it was found, because "the case is still being investigated and has not yet gone to grand jury."

Igou was arrested after police say he shot Gill in the head on Sept. 10, took a cash box from the business and stole Gill’s Kia Optima. Gill’s body was discovered the next day, and a search for the Kia led investigators to Foxhall Drive in east Anchorage. Igou was apprehended nearby after he allegedly ran into the lake trying to evade officers.

Police originally described Igou as a “person of interest” in the shooting, but later said he was charged with first-degree murder, second-degree murder and evidence tampering.

Patrick Moussignac contributed information to this story.

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