Anchorage police say an 18-year-old man found badly beaten in an abandoned downtown house two months ago likely had been attacked two to three days before he was found.
James Clinton was rescued by police Sept. 16 after an anonymous note was left at with University of Alaska Anchorage police.
Anchorage police have arrested four men in the case: 19-year-old Iosia Fiso, 20-year-old Trevvor Trobough, 21-year-old Tye Manning and 22-year-old Michael Liufau.
The Anchorage Daily News reports the four are charged with felony assault and hindering prosecution. Liufau is also charged with coercion.
The beating left Clinton in a coma for weeks.