By Steve Gorman (Reuters) -A shooting on the main campus of the University of Nevada, Las Vegas, on Wednesday left at least three people dead before the bloodshed ended with the suspect’s own death, authorities said. The Las Vegas Police Department said in written statement on social media that three people, aside from the shooter, were killed. Another person who was shot is in critical condition. Authorities have not identified the victims. It also remained unclear whether the suspect was shot dead by police or committed suicide. Vincent Perez, a professor at the school, known by its initials…