Updated at 9:38:
RAPID CITY, S.D. (KELO) –Rapid City Police say the suspect in an assault that happened Thursday has been arrested. Allac ‘AJ’ Dismountsthrice was arrested by Box Elder police Thursday at around 4:30 p.m.
Authorities say 39-year-old Richard Montanez of Rapid City died due to injuries sustained from the assault. The two other victims remain in critical condition with life-threatening injuries.
Dismountsthrice is currently in the Pennington County Jail and is being charged with one count of 1st degree murder and two counts of attempted 1st degre murder.
Authorities in Rapid City are searching for an assault suspect Thursday afternoon.
Three people have been sent to the hospital with serious injuries, Rapid City authorities announced. Police said the assaults happened in a house in the 500 block of E. Monroe. Authorities say the victims are two women and one man.
Police are hoping to track down more details on the suspect. As of 1:43 p.m. MT, Rapid City police say they are looking for Allac ‘AJ’ Dismountsthrice. Authorities say the suspect was known to the victims, so it isn’t a random attack.