however, when police chris reardon cleared the only science center they did not find any . >>> apparently there was a bomb threat and when i got here the police had all of the roads blocked and it took about 30 minutes until they left. >> anchor: so police left and classes resumed shorely after. no word on who may have made that threat. police are investigating an new hampshire. a store clerk says that man you see there walked up to her knife and demanded money. she said that's when she pulled away. anybody who might recognize this person is asked to call police. >> anchor: police make a big drug bust this peabody. investigators say they seized more than 650 grams of heroin from a man's car. police believe it was worth around $70,000. everett police were involved in the bust. a roslindale man in custody of he is being held on $1 million bail. an off duty rhode island fire fighter is recovering after a serious hit and run crash. he was found by members of his own fire station who used the jaws of life to pull him from his truck. he was rushed to the hospital and into surgery. his colleague