It was a solo student, nothing more needs to be said. If you can imagine it, it probably could happen. Previous to this the last two solo student phase II ejections from T-37s occurred as a result of (1) student screwing up a cuban eight and executing the roll nearly straight down, got disoriented and gave a Tweet a final resting place in the TX mesquite, and number (2) a solo student who G-Loc'd and woke up to a face full of dirt still in a disoriented state and gave one back to the taxpayers of Mississippi.
This will be nothing new. No state secrets, no conspiracy here--just a solo student who got out of an airplane. It is the cost of doing business and it happens/happened in ATC/AETC about once every 6 or seven years.