Why did Uvalde CISD Police Chief testify in secret, escorted through a back door?

AUSTIN (KXAN) -- As Gov. Greg Abbott called for "transparency," Uvalde CISD Police Chief Pete Arredondo exited secret closed-door testimony at the Capitol on Tuesday, getting in an elevator while surrounded by law enforcement, without saying a word."I challenge the chief to come testify in public as to what happened here," said Sen. Paul Bettencourt (R-Houston). "Don't go hiding in the House. Come to the Senate where the public of Texas can ask these questions." Bipartisan group of Texas mayors