ARGYLE, Wis. (AP) – A fight between brothers ended with a death in the southwestern Wisconsin city of Argyle. And the police chief who’d usually be responsible for the investigation is related to both the victim and suspect.   Twenty-seven-year-Aaron Saalsaa was hurt in the fight, which started early Sunday over what Monroe Police call family issues. He died later at a Madison hospital.  His 29-year-old brother was booked into the Lafayette County Jail on a tentative charge of aggravated battery. He posted $5,000 bail Tuesday.   Complicating matters, WMTV-TV reports, the sister-in-law of both brothers was a witness. She also happens to be Argyle’s chief of police, Haylee Saalsaa.   Due to the conflict of interest, the investigation has been handed over to the Monroe Police Department.

(Information in the following story is from: WMTV-TV, http://www.nbc15.com)