Authorities in southwest Idaho say one person is in custody and police are searching for other suspects after finding two men and a woman dead amid a violent crime scene in a home in the Boise foothills.

Ada County Sheriff Gary Raney calls the killings "heinous" and says he's never seen anything as bad in his 31 years in law enforcement.

Raney said at a news conference Wednesday that the killings occurred sometime between Sunday evening and Tuesday morning.

He says police are looking for people connected to a 2003 gold Subaru.

Police arrested someone Wednesday at the Best Buy store in Boise but Raney didn't offer details of that person's connection.

He also declined to release the name of the three victims, but he says they're related.