(AP) — Three Montana State University-Northern students were badly injured in a weekend stabbing at an off-campus apartment, Havre police said. A 17-year-old boy has been arrested on suspicion of three counts of attempted deliberate homicide and aggravated burglary. Two days before the stabbings, a judge in Havre issued an arrest warrant for the suspect, who faces trial in July for rape and sexual assault. The suspect was found at the scene of the second disturbance with blood on his clothing and shoes that matched prints found at and near the scene of the stabbing, Matosich said. The suspect told police he must have blacked out because he didn't remember anything that happened after 2:30 a.m.