SEASON 3, EPISODE 318 - Morgan, Prentiss, Reid and JJ are on the trail of a stalker and Hotch and Rossi are asked to consult on a murder case to determine whether or not a woman killed her husband because of his constant abuse.
SEASON 3, EPISODE 319 - While being apprehended, a suspected serial killer is injured and falls into a coma. Four years later he awakens with no memory, unable to even remember his own name, much less the crimes he supposedly committed.
SEASON 3, EPISODE 320 - The BAU is dispatched to New York, where they have to determine if the shootings of victims at point blank range are the work of a single killer or a team of killers. People who seemingly have nothing in common are shot at random The BAU discovers is deadlier to them than they anticipated.
SEASON 4, EPISODE 401 - When an SUV carrying members of the BAU explodes, the rest of the team fights to save their colleagues and catch the terrorists responsible for the bombing. Michael Steger ("90210") guest stars.