Btw here is a total list of the onscreen deaths in the film, besides Wiley, and who is killed by who:
Robert Marshall:
1. Adam shoots off his foot in the parking garage, and although this is not immediately fatal, the next time we see Marshall he has both feet so I guess he died and got cloned. Dismemberment?
2. He drowns when the fluid tank in the lab breaks open thanks to Talia's wild firing while she's being choked by Gibson, and he buried beneath a tidal wave of "blank" clone bodies. Although it's Talia's shot that ruptures the tank, Adam is the instigator of this (see below). Drowning.
Talia Elsworth:
1. During the car chase, Wiley accidentally shoots her and she falls out of the car. She is then resurrected. Shot.
2. During the shootout in the parking garage, she has the fingers on one hand shot off by Adam, who then breaks her neck. Is there a category for broken neck? I guess this could also go under "dismemberment," because of the fingers.
3. At the end, she's walking on a scaffold above the fluid tank and Adam grabs her ankles, causing her to fall off and become entangled by some handy wires in such a way that she essentially hangs. Definitely strangulation.
Michael Drucker:
1. Drucker's first death is shown in a flashback only. He was shot by Tripp, a radical anti-cloning activist. Shot.
2. He's accidentally shot by Wiley, who he then kills, and he subsequently dies of bloodloss, but not before he manages to whip up a partially completed clone of himself. Shot.
3. The still somewhat gooey Drucker dies during a shootout with the two Adams, when trying to avoid the spinning blades of a hover-copter vehicle (these have actual names but I honestly forget what they are), he jumps down onto a skylight, which gives way beneath him, causing him to plummet to his doom. Falling.
Vincent:
1. This is the only one of Drucker's henchmen who we see die only once. Adam shoots him while he is guarding Adam's captive wife and daughter. Shot.
Tripp:
1. He's shot by Adam with his own gun, but escapes and almost gets away in his Volkswagon before crashing because he's losing blood. He then spills his guts to Adam before ultimately shooting himself in the head. Shot, own weapon, and suicide. Maybe crash?
Dr. Griffin Weir:
1. This is the scientist who developed the whole cloning process. Drucker decides to shoot him for rebelling against him. Former friends, head shot.
Hank Morgan:
1. Adam's friend. The first time Hank dies is actually shown in a flashback after his death, and he's shot by Tripp. Shot.
2. After being resurrected via cloning, poor Hank dies a second time, once again at the hands of Tripp. Shot, again.
Johnny Phoenix:
1. A football player who plays for a team owned by Drucker. He gets his neck broken upon being tackled. Accidental, broken neck if there's a category for it. (Johnny's second death is actually never shown, but after he's resurrected Weir discovers he has cancer and will only live a few more years).
Excluding anonymous henchmen types I think that's everybody.