Note the date of the incident at school:
The following SaudiArabia.com report, posted online on Jan. 19th, dated coincides with that date and might be related:
A former Guantanamo prisoner and two other terrorists from Saudi Arabias most-wanted list were killed in an explosion in September, Interior Ministry spokesman Maj. Gen. Mansour Al-Turki said Monday.
The three have been identified as former detainee Fahd Saleh Suleiman Al-Jutaily as well as Mohammed Suleiman Al-Rashed and Sultan Radi Somaileel Al-Otaibi. All three were in their late 20s.