The Gustafsen confrontation occurred after about 20 natives refused to leave the property of rancher Lyle James. Tensions peaked on Sept. 11, when thousands of rounds of ammunition were fired after a vehicle driven by activists was blown up by an explosive device buried in the road. The occupation ended peacefully six days later. Fourteen natives and four non-natives were convicted on charges related mostly to trespassing. Wolverine was found guilty of assaulting a police officer and discharging a firearm.