January 18, 2013 11:58 am Gun Threat Closes Mainland Regional High Administrators at Mainland Regional High School cancelled school after a student from Lenape High received a text message about a possible threat in Mount Laurel County. NBC10’s Ted Greenberg reports. US & World Videos 0:19 Fire burns at abandoned NJ public school building 9:49 Danger in treats left out for pets: The Lineup 0:28 Dangerous dog treats found along Lehigh County stretch of Appalachian Trail 0:18 Former PAL coach sentenced for sexual assault of teen 0:50 Pat's Steaks set to reopen and add new items to their classic menu