ELMONT - ? Police are searching for the person who used explosives to blow up mailboxes in Elmont. According to police, a homeowner on Hunnewell Avenue called police after hearing an explosion and finding his mailbox in pieces. Officers say someone also used fireworks to damage a USPS mailbox at the corner of Madison and Cross streets. Anyone with information is asked to call Nassau Crime Stoppers at 1-800-244-TIPS.