Continuity mistake: After Murtaugh shoots the General's driver the car is swerving around and the dead guy loses his sunglasses, but they jump back on his nose for the rest of the scene. (01:30:20)
Continuity mistake: Shortly before the General's car gets hit by the bus the dead driver is leaning towards the side window. When the camera angle changes to inside the car his head is hanging forward. (01:30:30)
Continuity mistake: During the scene where the General is escaping in the car and Murtaugh shoots the driver. When the car is hit by the bus on the avenue you can see part of the device that makes the car flip over and roll away from the crash. (01:30:35)
Continuity mistake: The bad wound on Murtaugh's left shoulder (the one which got salted) disappears when he and Riggs drive back to his house. (01:32:35)
Continuity mistake: In the scene where "the General" and his driver were fleeing down the alley, the driver is shot. The general takes control of the wheel and carries on driving, but the car is in park... (01:34:25)
Continuity mistake: The pattern of scars on Riggs' face changes when he comes to deliver his bullet to Murtaugh: The two cuts on his left cheek become three, and the lesions on his chin disappear. (01:39:40)
Continuity mistake: A quick shot from the interior of the General's car looking at the approaching bus, a metal guard is seen on the front of the bus, painted white to match. It is not there in the shots before or after. (01:42:15)
Continuity mistake: At the end, when Riggs is at his wife's grave, it's supposedly raining. In one shot you see Riggs' hair is dripping wet, and when you see him bend down to put the flowers on the grave in the next shot, his hair is dry, and in the next shot it's wet again. (01:44:00)
Continuity mistake: When Mel Gibson is talking about the special bullet, kept as the suicide special, he describes it as a hollow point - to do the job right. When he shows the bullet it is a full metal jacket.
Continuity mistake: In the scene where Riggs is chasing Joshua and is told by Murtagh to take a shortcut to catch Joshua, he is shown running in bare feet. After shooting at Joshua from on top of the freeway he then runs down the embankment and is shown wearing tennis shoes, but there is nowhere these shoes could have come from and he is never shown putting them on.
Continuity mistake: Director's cut (or extra scenes on Lethal Weapon 4 DVD): When Riggs is sitting there at the beginning of the movie, he is crying and looking at the picture of his wife on the right and wedding day on the left. Earlier in the movie when the picture was setting on the TV set his wife's picture was on the left and his wedding day picture was on the right. Not only that, but in at the start the pictures are in a folding frame. During the near-suicide scene they are not. [The first scene shows Riggs has damaged the frame, and says to the photo of his wife, "I'll buy you a new one." which explains the later changes.]
Continuity mistake: When the bus hits the General's car, the bus windshield (at least on the driver's side) is all smashed up as seen from the shot inside the bus. However, when the bus backs up, and in later shots of it, the windshield is undamaged.
Continuity mistake: In the scene where Riggs is jumping off the bridge when chasing Mr. Joshua, first he has a rifle in his hand, his shadow on the bridge shows no rifle, when he lands he picks the rifle up off the ground and keeps running.
Continuity mistake: Their car goes round the corner and the police light falls off the roof and dangles, yet is back on the roof a second later.
Continuity mistake: Towards the end before Riggs saves Roger and his daughter he is wet, but when he is running on the street his hair is absolutely dry.
Continuity mistake: When Murtaugh comes downstairs and checks his tie it's on the outside of his vest. He then walks through a door and the tie is on the inside of his vest.
Continuity mistake: After the car crashes into Murtaugh's living room, Riggs escorts Joshua out onto the lawn. As Murtaugh starts patting him down, a shot from behind shows Joshua with his hands behind his head. In the very next shot from the front, his hands are now lower, behind his neck.
Continuity mistake: When Riggs is counting out of the money to pay the three drug dealers, he puts a 20 dollar note on the table. The wind then blows the note against the bag of cocaine and it is lying flat down, but in the next shot the note is folded up.
Continuity mistake: After Joshua is leaving Hunsaker's home after killing him, he is talking to Peter on a mobile phone and it is nearly dark. In Peter's scene in the car, the sun is still up and it is late afternoon/early evening. They are both in the same city.
Continuity mistake: When Hunsaker is talking to Murtaugh in his house, the shadows outside dramatically change throughout the scene. First the sun is beating down on Riggs from the right (over the ocean), then from the left leaving Riggs under a bunch of shadows from the tree. This constantly changes throughout the scene.
Answer: The jumper's name was Len McCleary. He was played by Michael Shaner and is credited for the role in the film (and on IMDB).
Bishop73