Man-Killer first appeared in Marvel Team-Upvolume 1 #8 by Gerry Conway and Jim Mooney. The character subsequently appeared in Daredevil vol. 1 #121, 123, Iron Man vol. 1 #126-127, and Marvel Team-Up vol. 1 #107, where she seemingly died. The character appeared several years later in Web of Spider-Man Annual #3, and made several appearances in Thunderbolts vol. 1, including issues #3, #18-20, 23-25, 27, 30, 34-35, 39-42, and in Deadline #2. After joining the Thunderbolts, and taking the name Amazon, she appeared in Thunderbolts vol. 1 #64-65, 67, 69, 71 Marvel Universe: The End #5-6, Thunderbolts vol. 1 #73-75, 80-81, New Thunderbolts #18, and Thunderbolts vol. 2 #100. Man-Killer received an entry in the Official Handbook of the Marvel Universe A-Z 2006 #7.
Katrina Luisa Van Horn was an Olympicskier and is a militant feminist. After engaging in an argument with anti-Women's Liberation skier Karl Lubbings, the two took their disagreement to the slopes. Katrina was an Olympic-level skier, but Lubbings cut her off and both skiers plunged off the mountain. Katrina was severely injured and disfigured. She was fitted with a powered exoskeleton and took the name Man-Killer. She has worked freelance and as an agent for HYDRA. Man-Killer has been a member of the Masters of Evil under the Crimson Cowl. As Amazon, she was briefly a member of the Thunderbolts under Hawkeye. She had fought Spider-Man on some occasions. During an altercation with the Thunderbolts, Katrina told Songbird that she'd rather not fight her, as she had no problems with women, just with men. Some time later however, Erik Josten discovered Katrina working as a bartender in his team's adopted home of Burton Canyon, Colorado. When Josten became a regular at the bar Katrina was congenial towards him, pretending not to recognize him as Atlas. Whatever animosity Katrina may or may not bear towards men, she has proven herself capable of working alongside them with a minimum of personality conflicts. Man-Killer is seen to be among the new recruits for Camp H.A.M.M.E.R. Man-Killer later appears as part of Baron Helmut Zemo's third incarnation of the Masters of Evil where they attacked Winter Soldier's incarnation of the Thunderbolts. During the "Opening Salvo" part of the Secret Empire storyline, Man-Killer was involved in the Masters of Evil's next fight with the Thunderbolts which ends in her apparent death at the hands of.
Powers and abilities
Robotic implants replacing and/or compounded with bones and nerves, which give her superhuman powers, good athletic abilities, and the ability to throw knives at a range of hundreds of meters. She was given Pym particles to grow in strength proportionate to size.
