The coroner tells Steve the rapist strangles the women with one hand, his right. When the rapist goes to strangle the last victim he uses his left hand.
When Danny and Ben depart Iolani Palace, they leave in a 1972 Ford Galaxie, when they arrive at the crime scene, they are in a 1973 Ford Galaxie.
It is interesting to note that no one questions why the police officer does not have his name on his uniform, not even the undercover police woman notices.
Towards the beginning of the episode, when the body is being dumped the car makes a "U-Turn", driving over the verge on both sides of the road. You can clearly see a previous set of tyre tracks where the shot was rehearsed.
Throughout the episode the couple Joe and Andrea are referred to by the last name of "Burdick". In the credits they are listed as "Joe and Andrea Barone".
The character Joe Burdick is erroneously listed as "Joe Barone" in the end credits.
Near the beginning when they're showing the first body you can see the shadow of the helicopter doing the filming.
McGarrett, when talking on the car radio to dispatch, doesn't press the call button when speaking or release it it when listening. He also partially blows his line when he says, "Duke, get that stake up set up." He should have said "that stake out set up."