Another Oscorp employee, Doctor David Patrick Lowell worked in the Osborn Chemical Company division, where his main project was a type of "super fertilizer" that could increase the solar absorption and growth rate of flora. After being passed over for a promotion, an irritated Lowell showed Osborn his work, and Osborn, noticing Lowell's chemical was uncannily similar to the Goblin Formula, immediately fired him and ordered all his work terminated. As his life's work was being destroyed by Oscorp employees, an enraged Lowell tried to fight them off, only to become drenched in his formula and be knocked into a wall of solar lamps. The combination of the Goblin Serum-esque chemical and the electricity caused Lowell to mutate into a light-based being dubbed "Sundown". After going on a rampage through New York, Sundown was ultimately defeated and imprisoned by Spider-Man and several other heroes.[2]
After being incarcerated for ten years, Sundown was released from prison, but was blackmailed back into supervillainy shortly afterward by mob boss Lucky Lobo. Eventually turning against Lobo, Sundown, with Spider-Man's help, was able to expose his crimes. Afterward, Sundown declined Spider-Man's offer of becoming a superhero, in favor of a normal life.[3]