Former investigative reporter William Gaines, who twice shared a Pulitzer Prize while at the Chicago Tribune, has died.

Gaines' daughter, Michelle, says the 82-year-old Gaines died in hospice care in Munster, Indiana, on Wednesday. She said he suffered from Parkinson's disease for 15 years.

Gaines was a member of teams of reporters that won Pulitzer Prizes — the first for uncovering abuses in federal housing programs and exposing horrid conditions at two hospitals and the second for uncovering problems with the Chicago City Council.

Gaines also taught journalism at the University of Illinois at Urbana-Champaign. There he led a group of students that concluded — mistakenly, as it turned out — that the Watergate informant known as "Deep Throat" was a onetime White House deputy counsel under President Richard Nixon.