According to Bexar County Sheriff's spokesman Paul Berry, a man fell to his death early Friday morning at the AT&T Center.
Berry said the incident occurred just before 2 a.m. as crews were working on the stage after a concert.
The man was walking on the catwalk.
He had removed his safety harness to move around a beam when fell to his death.
The worker has been ID'ed as 44 year-old Dean Williams from Houston.