'Everybody Loves Raymond' Son Sawyer Sweeten Dead -- Commits Suicide ... Dies in Texas

Sawyer Sweeten -- one of the twins from "Everybody Loves Raymond" -- committed suicide Thursday morning, according to his sister.

19-year-old Sawyer reportedly shot himself while visiting family members in Texas. His older sister Madylin Sweeten -- who was also on 'Raymond' -- confirmed the death to TMZ, saying ... "This morning a terrible family tragedy occurred. We are devastated to report that our beloved brother, son, and friend took his own life."

Sawyer played Geoffrey Barone -- one of Ray Romano's twin boys -- on the series from 1996 to 2005. He not only co-starred with Madylin, but also his real life twin brother Sullivan.

His 20th birthday was just a few weeks away.

Madylin posted on Facebook on Thursday afternoon ... "At this time I would like to encourage everyone to reach out to the ones you love. Let them have no doubt of what they mean to you.”