Nitro (character)
Nitro is a supervillain appearing in American comic books published by Marvel Comics. He first appeared in 1974. Nitro is known for playing a part in the death of the Kree superhero Mar-Vell. He is also known for being responsible for the Stamford, Connecticut tragedy that started Marvel's Civil War crossover. Publication history Nitro first appeared in Captain Marvel #34 (September 1974) and was created by Jim Starlin. Fictional character biography Robert Hunter was born in Scranton, Pennsylvania. He was an electrical engineer. Due to genetic alteration carried out on him by the Kree Lunatic Legion, Robert gained the ability to explode and reform himself at will and became a professional criminal. Some time later, he exposed Captain Marvel to a carcinogenic nerve gas; this encounter ultimately caused Captain Marvel's fatal cancer. Since then he has clashed with Earth's superhumans, who have found creative ways to defeat him, including using the "fractioning (separation) of his exploded mass" against him (essentially, if he can't reform himself after an explosion, he can't explode again). Nitro later battled and was defeated by Omega the Unknown. He later escaped from Project: Pegasus, and then battled and was defeated by Spider-Man. Nitro was later freed from his containment canister by the Vulture in Albany, New York. He battled Skids of the New Mutants, and was unable to re-form his body within Skids' force field. He was then recruited by Thanos to serve him in a mission alongside several other supervillains, including Rhino, Super Skrull and Titanium Man. When the mission ended with the Silver Surfer rescuing the Earth-based villains, Nitro decided to take a space craft and explore space. Much later, when the Kingpin was plotting his return to the New York underworld, he hired Nitro as one of many assassins to launch a carefully planned simultaneous attack on several New York crime bosses, including Don Fortunato, Hammerhead, Caesar Cicero, Silvermane, and many others; Nitro's target was Norman Osborn, who emerged relatively unscathed. One such appearance where a foe took advantage of his limitations was in Iron Man vol. 3 #15, where he was hired to kill Tony Stark. A fight occurred between Nitro and Iron Man. Iron Man, whose sensors and telecommunications gear had been recently upgraded, noticed that every time he exploded, a high-frequency pulse was emitted by his body. Experimenting, Iron Man duplicated the pulse, causing Nitro to explode. After he exploded several times in a minute, he passed out from exhaustion (presumably, it takes energy to explode, and he could only spare so much before he passed out). Iron Man then handed him over to S.H.I.E.L.D., along with a recommendation on constructing a null-harness. He was sent to prison. On another occasion, when Nitro's lawyer had him released from captivity, the villain immediately escaped, attempting to rob a bank for money to travel to San Francisco to kill Captain Marvel. He was opposed by Spider-Man, who defeated Nitro by webbing a barrel of tear gas to his body right before he