(Portland, OR) -- Three people are facing charges after a man leaving Portland's Central Library was stabbed several times while trying to stop an assault on Monday. Portland Police say the victim came out of the library and saw a disturbance. When he tried to intervene, he was stabbed and assaulted by two people with skateboards. The man was hospitalized with non-life-threatening injuries. Police located the suspects in the Holladay Park area. Three people were arrested for assault.