Prayers for your son and other innocents.
The link below has a lot of info on the attack and attacker.
Apparently the attacker was killed and was a Somali killer, using his car and a big knife:
UPDATE: A 20-year-old Somali man is the suspect in the Ohio State University attack
https://twitter.com/local12?lang=en
Somalia? There’s no terrorism there. /sarcasm