Some details are starting to emerge but there is a bit of a news blackout because this is still an ongoing police investigation.
Two suspects have been arrested. The adult has been named by his father as Hussam Eddine Alzahabi. The youth cannot be named but had been charged with terrorism. Bomb making material has been discovered and neutered by police.
Kudos to the FBI for alerting Canadian police.
(The good news is that the two suspects do not appear to be Chinese, Irish and/or Italian as warned by at least one member.)