Police sergeant pens heartbreaking letter to deceased K-9 partner

CBS NEWS -- There are few human-animal bonds closer than the one formed between a police officer and his K-9 partner. So, when Sgt. Michael Spitaleri's longtime canine companion -- a black German Shepherd named Major -- passed away on the morning of June 24th, Spitaleri penned a beautiful letter to his fallen partner in, well, the opposite of crime."Today has been the most difficult day of my career," the note begins. "I made the decision to end your pain and suffering, however I'm hurting far m