The drama apparently began days earlier when the shooting victim, a 52-year-old man, became convinced that the 55-year-old was having relations with his wife, said Pierce County Sheriff's Office spokesman Ed Troyer.
The 52-year-old then camped out in his car along a private road about 100 yards away from the 55-year-old's home, near 92nd Street East and Canyon Road East, apparently in an effort to intimidate him, Troyer said.
On Monday morning, the 55-year-old told his girlfriend and some children in the home to get to a safe place. He then went over and confronted the 52-year-old in his car.
At some point, the 55-year-old opened fire at the 52-year-old, striking him in the chest and leg, Troyer said.
Medics and deputies were called to the scene, and the 52-year-old was taken to St. Joseph Hospital in Tacoma.
"(Sunday), the owner actually brandished a gun in previous days and asked (the 52-year-old) to stay away, but he came back," Troyer said. "But that still doesn't give you the right to go out and do what happened. We'll have to investigate what led up to the actual shooting."
A search found no other weapons at the scene, leading to questions as to whether he had the right to shoot in self defense.
"In this particular case, we're going to have to get into some more details as to why he actually shot him and if there was any of that there-- and if not, he could be in some trouble," Troyer said. "We'll let the prosecutor decide that."
No arrests have yet been made.