 In 1995 he was stabbed while investigating a case in which children were locked in closets while their parents were murdered.The perpetrator, Walter Resden, harbored a grudge against Horatio, collecting the blood from the stabbing and preserving it for 10 years in order to frame him for the murder of Horatio's girlfriend, Rachel Turner.After his arrival in Florida, Horatio joined the Miami-Dade Police as a homicide detective but later transferred to the bomb squad, where he was mentored by Al Humphries, an older cop whom Horatio respected and considered a good friend; Humphries was killed after accidentally triggering a bomb he was attempting to disarm.