The Lobster | The Hellboy Comic Series

The Lobster was a vigilante who worked in secret in New York City during the 1930s. He had a reputation for violence, such as killing mobsters and burning his trademark lobster claw symbol into their foreheads. In modern times, the general public believes the Lobster is only a fictional character created by a retired detective turned pulp author. These pulp stories gave him the (fictional) alter-ego of wheelchair bound millionaire Walter Johnson, inspiring his popular nickname "Lobster Johnson". A few conspiracy theorists correctly believe the Lobster was real, though he was never referred to as "Lobster Johnson" in his own time.
The Lobster's final mission was an unsuccessful attempt to prevent the Nazis from launching a space capsule at Hunte Castle, Austria, on 20 March 1939. Arriving seconds too late to stop the launch itself, he managed to force the roof of Hunte Castle closed, but the capsule burst through regardless. The subsequent explosion and fire completely gutted the castle. Besides Nazi scientist Herman von Klempt and one German soldier, there were no survivors, including the Lobster himself. After his death he reappears as a tangible spirit/ghost who assists Hellboy and the B.P.R.D.