In this thread, I try to gather all the “Death by Proxy” kills the whole trilogy of Hitman proposes :
It concerns every kills done by a NPC to a target. In other words, the kill isn’t performed by 47’s hands. I won’t consider the kills done by an animal (like the hippo in Santa Fortuna).
This list also concerns “methods intended by the developers”. The forum is full of very good players that create perfect setup to kill targets with a NPC through different things and items (I remember a setup where an explosion is triggered by the jogger and a rake in Whittleton Creek). I won’t add them.
Likewise, I won’t add situations where a target “kills himself/herself” because (s)he smokes by a leaked propane flask.
EDIT : The definition of a proxy kill is quite complicated. The actual definition is a kill performed by another NPC, but some kills required a NPC to be done, even if the NPC just do nothing but carrying something. After reflexion, I decided to keep the kills through poisoned food or drugs, but when a NPC is required to perform the kill. Indeed, what’s the difference between a NPC who kills unvoluntary a target through electricity or poison?
Target is killed voluntary by a NPC
Bangkok
Ken Morgan : Jordan Cross pushes Morgan over a balcony if they meet together in the hotel hall. - Requires disguises.
Related challenge : Oops! I Did It Again!
Hokkaido
Erich Soders : The chief surgeon Nicholas Laurent voluntary kills Erich Soders during the surgury. The surgeon must take drugs and informed that Soders killed his father. - Requires disguises.
Related challenge : (Not) Malpractice.
Mumbai
Dawood Rangan : Killed by the Kashmirian during the painting. Kashmirian’s scope must be calibrated and paint must be replaced in the paint box. - Can be done Suit Only.
Related challenge : Proxy Killer.
Vanya Shah : Killed by the Kashmirian during her meeting with the laundry foreman. The foreman’s documents must be retrieved - Can be done Suit Only.
Related challenge : Proxy Killer.
Dartmoor
Alexa Carlisle : Killed when she’s drinking a glass of whisky poisoned by Emma. Need to frame the butler for Zacchary’s murder and the machine must be fixed in the greenhouse. - Requires disguises (to frame the butler) or Suit Only (if the family meeting is triggered after family shooting).
Related challenge : A Matter of Loyalty and Another Death in the Family.
Mendoza
Tamara Vidal : Killed by a sniper. You need to steal an earpiece and next order the sniper to kill the target. - Requires disguises.
Related challenge : Mission Story - Eyes on Target.
Tamara Vidal : Killed by Cortazar during the Heralds meeting. Need to trigger the meeting. - Can be done Suit Only.
Related challenge : Closing Statement.
Archibald Yates : Killed by his wife, pushed over the balcony. Specific files must be given to his wife. - Requires disguises.
Related challenge : Domestic Disturbance.
Archibald Yates: After doing the “Closing Statement” hidden mission story, Diana stabs Don Yates. If 47 does not finish the work, Yates will ultimately dies from stab. It takes however a long time.
Related challenge: Closing Statement.
Ambrose Island
Noel Crest: Give the evidence that Hsu is dead to Akka. Akka will schedule a meeting with Crest and ultimately kill him by pushing him over a cliff.
Related challenge: A Kill to Treasure.
Siberia (Sniper Assassin)
Vitaly Reznikov : Destroy Roman Khabko’s clothes and create the big escape. Khabko will be angry and kills Reznikov.
Related challenge : none (but there is an achievement/trophy : Fragile Alliance).
Target is killed by a NPC unvoluntary
ICA Facility
Jasper Knight : Just put the files on the slide projector. 47 needs to switch off the fuse. The KGB officer will switch on the fuse while Knight is working on the slide and he will be electrocuted. - Requires disguises.
Related challenge : Death by Proxy.
Miami
Sierra Knox : Robert Knox kills his daughter in an explosion. You need to put an explosive on Sierra’s car, recover the files and gives the trigger to Robert Knox during a rendezvous. - Requires disguises.
Related challenge : Explosive Liaisons.
Dartmoor
Alexa Carlisle : Killed during the photo shooting. The fuse box must be repaired, a water leak is made and wire exposed. - Can be done Suit Only.
Related challenge : One for the Ages.
Chongqing
Imogen Royce : If you time perfectly the different fires. First disables the security, the second phones to Royce’s bodyguard, moving way him from Royce, third launches the maintenance procedure, killing Royce. - Can be (theoritically) done Suit Only.
Related challenge : Medium Rare.
Target kills himself/herself
Hawke’s Bay
Alma Reynard : Waking her while she’s sleeping and scaring her by pointing a gun at her. She will flee and eventually will go to the sea and drown.
Related challenge : none.
Santa Fortuna
Jorge Franco : Create a bloody cocaine bag by putting a corpse inside the cocaine machine. Next, make Jorge Delgao tasting the bloody cocaine. He will ultimately commit suicide.
Related challenge : none.
Dartmoor
Alexa Carlisle : Kills herself if you confirm the suicide theory for Zacchary’s murder. - Requires disguises.
Related challenge : A Matter of Guilt.
Target is killed through poisoning (and NPC is required)
Sapienza
Silvio Caruso : Poison his food and ring the bell. The NPC chief Marcello brings the plate to Silvio. - Requires disguises.
Related challenge : What’s Your Poison?
Marrakesh
Reza Zaydan : Poison his food and wake up the waiter. The NPC waiter brings the plate to Reza. - Can be done Suit Only.
Related challenge : Poison IV.
Hokkaido
Erich Soders : Poison the stem cells in the store room and destroy the stem cells used for the surgery. The NPC nurse brings poisoned stem cells to the patient. - Can be done Suit Only.
Related challenge : Kiss of Death.
Hawke’s Bay
Alma Reynard : Poison the right ingredient (honey or sugar). The NPC Orson prepares a poisoned tea to Alma. - Can be done Suit Only.
Related challenge : Sugar, Honey, Honey.
Miami
Sierra Knox : Poison the medicine contained in the baxter. Get rid of the pilot who the doctor is caring for. The NPC doctor will ultimately schedule a medical appointment with Sierra when the race is over and will inject poisoned drug to Sierra. - Can be done Suit Only.
Related challenge : Vitamin Overdose.
Haven Islands
Ljudmila Vetrova : You need to prepare her food and poison it. The NPC cooker will phone to Ljudmila. She eventually comes taste her food. - Can be done Suit Only.
Related challenge : none.
Tyson Williams : Poison Williams’ medicine. The NPC doctor will come to auscultate Williams and ask him to take his drugs. - Can be done Suit Only.
Related challenge : Common Side Effects.
Berlin
Agent Lowenthal : Poison the food from the delivery guy. Ring the bell. The NPC biker comes and brings the delivery food to Lowenthal. - Can be done Suit Only.
Related challenge : none.
Ambrose Island
Noel Crest: Prepare and poison the food for Noel Crest in the restaurant. 47 also needs to wake up the female cook in a nearby hut. Thus, the NPC cook brings the poison food to Crest.
Related challenge: Made to Order.
Special thanks: @Franz; @TheContractor ; @420 ; @Pitman ; @Pacifist_47 ; @PEA ; @OKIGorgon ; @Freezer ; @Generickillz ; @Sassthathoopyfrood (and all the others who contribute to this thread).
If you find other situations when you get a “death by proxy”, feel free to mention them.
EDIT : Modification of the post to add different categories.
Add some other kills.
Add challenges related to them.