Hi Wife put out a statement that this suicide might have been due to Anxiety medication.
"His world revolved around his family first and, of course, his music second. He flew home for Mother's Day to spend time with our family. He flew out mid-day Wednesday, the day of the show, after spending time with the children. When we spoke before the show, we discussed plans for a vacation over Memorial Day and other things we wanted to do."
However, following Soundgarden's concert Wednesday night, Vicky noticed a change in her husband's demeanor when they talked on the phone after the show.
"When we spoke after the show, I noticed he was slurring his words; he was different. When he told me he may have taken an extra Ativan or two, I contacted security and asked that they check on him," she continued. "What happened is inexplicable and I am hopeful that further medical reports will provide additional details. I know that he loved our children and he would not hurt them by intentionally taking his own life."
This would explain why she was concerned enough later that night, when not reaching him, to ask someone to check on him.