Chai Vang hunted several of those people down like prey after he shot his second or third victims. IIRC, four were shot in the BACK.
He was trespassing on private property (posted as such), they told him to leave. There was an argument after that and he killed 6 people and tried to kill the two others who were present.
There is also a perception that Chai Vang, had a hunting partner and that they were possibly responsible for shooting another hunter in 2001. Not sure if this theory was ever proven further, but it does set up a uneasy dynamic in that there is the spectre a killer, of specific descent, in the midst during hunting season.
http://www.twincities.com/mld/pioneerpress/news/local/10267284.htm
Clark County sheriff's deputy said last weekend's shootings had vague similarities to the death three years ago of Jim Southworth, 37, of Medford, Wis. Southworth's body was found on family land Nov. 24, 2001, a day after he had gone deer hunting by himself.
"We're not considering Mr. Vang a suspect. We're considering him a possible witness," said Chief Deputy Jim Backus of the Clark County Sheriff's Department in Neillsville.