WEST YARMOUTH, Mass. — Police canine Nero is recovering following being injured during a shooting that killed his handler.The Yarmouth Police Department posted a photo of Nero on Sunday morning, reporting that the 28-month-old Belgian Malinois is "back on his feet" following a Friday surgery.A photo of Nero was posted , showing him bandaged and with a tube inserted into his torso and dubbing him "OUR FOUR-LEGGED HERO!"Nero was shot in the head and neck area during the Marstons Mills shooting that claimed the life of Yarmouth police officer Sean Gannon on Thursday.