STAMFORD-On a day when many citizens are observing the legacy of Martin Luther King Jr., Stamford police are investigating the weekend spray painting of racial epithet on the garage door of a Bulls Head home. City police were called to High Clear Drive Saturday morning at 8:22 a.m. when resident Lexene Charles got into his car to warm up the engine and saw that someone had used a black can of spray paint to spell the seven-letter slur on the white garage door. Sgt.