REPORT: Fmr. Butler Officer's Death May Been Accidental

Milwaukee county authorities are piecing together what happened leading to the death of a former Butler police officer early Saturday morning.

39-year-old Brian Pergande was convicted of disorderly conduct in 2014 but he described himself as a 'whistleblower' who was punished during a department-wide investigation.

Authorities found Pergande's body under a bridge on North Lover's Lane just after 8 a.m. on Saturday morning. That's nearby where he was last seen uninjured: Silk Exotic Gentlemans club.

Pergande's wife told investigators they arrived at Silk Exotic around Midnight and her husband had been drinking.

At 1 a.m. Pergande left Silk Exotic upset and threw some of his belongings on the ground. His wife told investigators she picked up the items and tried to drive Pergande away from the area but he got out of the vehicle and went missing.

He was discovered hours later. According to a medical examiner's report he was breathing lightly and had a soft pulse - but also had a large open skull fracture with brain matter showing through.

He would not survive the morning.

Pergande was last in the public eye working for the Village of Butler Police Department until a review by the Waukesha County Sheriff's Department revealed disorderly conduct. 

Specifically - in 2009 he took pictures of an exotic dancer in his custody, according to court documents.

He and another officer alleged they were the real whistleblowers and were being retaliated against for leaking information on fellow Butler officers who would regularly watch pornography in the office.

He would serve 30 days in jail for disorderly conduct.

Now, almost two years later, Pergande's attorney is calling for privacy for the family following the death.