True terrorists don’t always blow themselves up, but they often are all killed. In the 2004 attack on the Beslan school by more than 30 armed men, for reasons related to the problems in Chechnya, all but one were killed in the final attack by Russian authorities. Unfortunately, that attack was so violent that around 300 hostages, mostly children died also.
https://www.britannica.com/topic/school-shooting
Pretty consistent with what I remember. At that time I was hoping Russians and Americans could cooperate more.