While still a Lieutenant Colonel in the United States Army at Camp Killian, Eric Savin was put in charge of Project: Ultra-Tech. There he met the love of his life, Lieutenant Gina Dyson. While on patrol, Savin stepped onto a freshly planted mine which blew him into pieces. He was dead for 2.3 minutes. Gina immediately performed cybernetic surgery on him. The surgery was successful — Savin was alive, but resurrected as a cyborg by Mako's Project: Ultra-Tech. Dyson, his former lover, aided him in battling Mako and his robots, and apparently slew Mako in combat. The "7" in Coldblood's original name was stated to be a mere wordplay on Coldblood's real name "Eric Savin", as his surname is pronounced in the same way.
"Meh - I'd rather see Crimson Dynamo or Titanium Man"