Several sources have confirmed Robin Williams, the venerable American actor who got his start playing Mork in TV comedic duo Mork & Mindy, has been found dead at home. According to a Tiburon, California coroner, the death is believed to be a suicide caused by asphyxiation. Williams was 63.

This news comes just after it was announced he would reunite with director Chris Columbus for Mrs. Doubtfire 2.

"This morning, I lost my husband and my best friend, while the world lost one of its most beloved artists and beautiful human beings," writes his wife, Susan Schneider, in a statement. "I am utterly heartbroken. On behalf of Robin's family, we are asking for privacy during our time of profound grief. As he is remembered, it is our hope the focus will not be on Robin's death, but on the countless moments of joy and laughter he gave to millions."

Already, his tragic passing is being publicly mourned:

We look back at a scene in which Williams made us laugh from Mrs. Doubtfire. Robin Williams, you will be sorely missed.