Daniel Davis, a burglar, had some contacts with exotics persons interested to acquire rare antiquities. Davis contacted Reynolds, a security guardian of the Museum of Natural History. One night, Reynolds sabotaged the surveillance system of the Museum, and Davis and his men broke into the Museum, killed some guardsmen, captured some hostages, and started to rob the most ancient and precious pieces. Davis found the most prized piece of the exhibition, an ancient Macedonian Mask of Death.
While the burglars were stealing the antiquities, Nightwatch spotted them and entered in the Museum attacking them. Davis, seeing his men falling, fled, pushing the Mask onto his own face. The Mask stuck on Davis' face, warming his blood and inoculating an archaic balsamic substance in his veins. Daniel Davis died in the pain, leaving only Deathgrin remaining.
Suffering and enraged, Deathgrin attacked Nightwatch, crushing statues and succeeding in touching his foot. His acid touch burned Nightwatch. He threw a big statue at the vigilante then fled outside after having crushed the wall. Nightwatch enveloped Deathgrin with his cloak, but the criminal ripped free from it. Then the policemen arrived and shot whole magazines (of bullets at Deathgrin, who remained unharmed. In his search for vengeance he demolished the columns of the front of the Museum that crumbled on him. However he managed to melt the ground and run away in the sewers, leaving an acid path in the waters.
The pain drove Deathgrin to seek vengeance. He set a trap up for Deathwatch. When the vigilante approached, Deathgrin emerged from the waters behind Nightwatch. Nightwatch's cloak automatically reacted and slashed Deathgrin, launching him on to a wall, but the criminal was unharmed. Deathgrin tore open a pipe and a cloud of gas filled the sewer, but it seemed not to harm the criminal. The fight continued underwater and finally, with a powerful, cruel uppercut Nightwatch knocked Deathgrin out.
Nightwatch transported Deathgrin upside to the street, where the Police blocked him with special bracelets.
Presumably Code Blue took Deathgrin in custody.
Powers / Abilities
Daniel Davis was a normal human. As Deathgrin, he was like the living dead. His skin became calcified and as hard as stone, giving him a certain degree of invulnerability. In his blood flows arcane acids, it gave him a burning touch. His strength became unnaturally high (enhanced human level) and probably he had no need to breathe.