Amber Mostyn, his wife, said he died on Wednesday. “He was a true friend, and a faithful fighter for those who did not have a voice,” Mostyn said. “Steve touched countless lives.”
She didn’t confirm his cause of death but suggested that he might have killed himself.
“If you or a loved one are thinking about suicide, or experiencing a health crisis, call the National Suicide Prevention Lifeline right now.” The number is 1-800-273-8255.
Based in Texas, Mostyn made his money via representing homeowners who sued insurance companies. He was also an attorney based in the Houston area, according to the Texas Tribune.
Mostyn is survived by his wife, daughter Ava, son Mitch, and nephew, Skyler Anderson.
Mostyn gave more than $2.3 million toward Democrats’ 2014 efforts to elect candidates including Wendy Davis, who ran for governor. In total, he had given Davis more than $3 million over the course of her political career. Since 2000, he had donated more than $24 million to political causes in his name and in his law firm’s name, according to Texas Ethics Commission records.“He was the epitome of a Texas Democrat -- big, bold, fearless, and caring. He dedicated his professional and personal life to fighting for the little guy,” Texas Democratic Party Chairman Gilberto Hinojosa said in a statement, CBS reported. “I am so deeply saddened to have lost our dear friend.”
U.S. House Minority Leader Nancy Pelosi also mourned his death.