“Cytron-Walker, one of the final three hostages remaining after one was released, has said he eventually threw a chair at Akram after telling the two others to run. The three hostages escaped; an FBI team moved in, and Akram was killed, authorities said.”
“Clergy and staff at the synagogue had taken courses for a number of years through the FBI, the Anti-Defamation League, the Colleyville Police Department, and Secure Community Network in order to prepare for the possibility of an intruder.” -Wikipedia