David

David was the husband of Tina McGee and a scientist at S.T.A.R. Labs. He died in an experiment at the lab.

Legacy
The accident led to many S.T.A.R. Labs employees to quit.

The public, including Barry Allen, is aware of the accident and his death.

Behind the scenes

 * In the comics, Jerry McGee is the husband of Tina McGee. He was a speedster called the Speed Demon and was an enemy of the Flash.