The CT-114 Tutor is only flown by the Snowbirds demonstration team, 9 aircraft and 2 spares. They have not been used for training for quite a few years. GE J85 engines, same as the T38.
Possibly an engine issue, although I didn't see anything out the tailpipe in the video, some reports of a "pop" followed by the zoom up. Target is to apex at 130 knots, assess and either eject or fly (glide). Sort of looked like left turn wingover that then snapped into a right spin, one turn, rotation stopped and the eject. Not great ejection seats from what I hear.
Deceased crew member was the PRO, public relations officer, not a pilot or engineer. She was catching a ride to the next port of call, Comox.
For us backcountry pilots, engine failures can happen, on takeoff, at a bad time. Or maybe you just think it failed, like a compressor pop, or a bad gauge in a Cirrus, and you react wrong. Shit happens.
'74 7GCBC, 26" ABW, Aera 660 feeding G5 and FC-10 FF.