J Cut: You still hear the flame thrower heating up the wire in the next shot.
J Cut: You still hear the blood sizzling in the next shot.
Cross Cut: One of the characters in the seated chairs looks behind them and sees the dead bodies, The camera then transition’s focusing on the character onto the dead bodies.
Cross Cut: The anticipation for the characters lives, they stare at something (the unknown) then the camera cuts away to the blood petri dish as Macready puts the hot wire on.