Woonsocket Police are trying to track down where Sean Rivera got the gun used to kill two people and then turn the gun on himself. Police have disclosed the .380 caliber was stolen out of Maine, but so far there has been no arrest. Sources close to the investigation tell DEPETRO.COM Rivera got the gun from an online friend in New Hampshire just in the past two weeks. A close friend of Rivera believes he intended to use the gun to kill his girlfriend, who had recently broken up with him. Several years ago, Rivera was convicted of arson after he set a house on fire of the new boyfriend of a girlfriend who had just ended a relationship with him. If his friend had not provided Rivera the weapon, two innocent people would be alive.