According to mail online,He took his own life while visiting family in Texas, shooting himself on the front porch.
He played Geoffrey Barone on the hit show alongside his twin brother Sullivan, who played Michael, for 139 episodes.
Their older sister Madylin also played their older sister on the show, Ally.
The older sister released a statemnt confirming the suicide 'This morning a terrible family tragedy has occurred. We are devastated to report that our beloved brother, son, and friend, Sawyer Sweeten, took his own life. He was weeks away from his 20th birthday,' said Madylin in a statement.