What a crazy and sad turn of events... BIRCHWOOD, Wis. - A deer hunter shot and killed five people and injured three others in northwestern Wisconsin following a dispute about a tree stand during the hunts opening weekend, authorities said. The 36-year-old alleged gunman, who lives in the Minneapolis area, was arrested Sunday afternoon, Sawyer County sheriffs officials said. Jake Hodgkinson, a deputy at the county jail, identified the suspect as Chai Vang but would give no additional details. The incident began when two hunters were returning to their rural cabin on private land in Sawyer County when they saw the suspect in one of their hunting platforms in a tree, County Chief Deputy Tim Zeigle said. A confrontation and shooting followed. Its not known who shot first, Zeigle said. Both hunters were wounded and one of them radioed to the cabin a quarter mile away. Other hunters responded and were shot. About 20 shots were fired, but its unclear who shot them, he said. The dead included four males including a teenage boy and a woman, Zeigle said. A father and son were among them, he said. Some of the victims were shot more than once. All five, from the Rice Lake area, were dead when officers arrived to the area in southwestern Sawyer County, he said. Authorities found two bodies near each other and the others were scattered over 100 yards. Its absolutely nuts. Why? Over sitting in a tree stand? asked Zeigle. Zeigle said the suspect was chasing after them and killing them, with a SKS 7.62 caliber semiautomatic, a common hunting weapon. Wisconsins statewide deer gun hunting season started Saturday and lasts for nine days. Two young people who stayed in the cabin emerged safely after the shootings. The suspect, who did not have a compass, got lost in the woods and two hunters, not knowing about the shootings, helped him find his way out, Zeigle said. When he emerged, a Department of Natural Resources officer recognized the deer license on his back, given to police by a victim, Zeigle said. The man was out of bullets and was arrested, Zeigle said. One of the injured hunters was in critical condition at St. Josephs Hospital. Another was listed in serious condition and the third was in fair condition, both at Lakeview Medical Center. Hunter Bill Wagner, 72, of Oshkosh, was about two miles away near Deer Lake with a party of about 20 other hunters. After they got word of the shooting, he and others went to round up the rest of the party. He said they heard sirens, planes and helicopters and noticed the surrounding roads blocked off. When youre hunting you dont expect somebody to try to shoot you and murder you, he said. You have no idea who is coming up to you. It took about three hours to round up the other hunters, who were up to four miles apart, Wagner said. Were all old, dyed-in-wool hunters, he said. We wouldnt go home because of this but we will keep it in our minds. Were not forgetting it.