Delp's cause of death was ruled a suicide. The reason for Delp's suicide has been the subject of contradictory news reports and various lawsuits. A series of interviews conducted by the "Boston Herald" alleged that lingering hard feelings from Boston's disbandment in the 1980s and personal tension between Delp and bandleader Scholz drove the singer to commit suicide. Scholz denied these claims but lost the defamation suits he filed in response. Court documents from the trials detail Scholz stating that Delp was plagued by personal problems. "Boston Herald" attorneys pointed to testimony from former Boston members, other local musicians, Delp's doctor, and Delp's friends, including Meg Sullivan (his fiancée's sister), many of whom say the singer did not like Scholz, desperately wanted to quit the band and felt tormented by his role as middleman in an ugly conflict between Scholz and former band members. All of this was summarized in a 140-page statement filed by the "Herald" in April 2012.