In 2002 Mr. Bones showed up at the White House with a number of top-notch espionage brass for a cabinet meeting to discuss the metahuman "epidemic." The room was horrified to see Bones' entrance, but once he began to talk, the room went still as he pitched an incredibly masterful speech for why the president should put a metahuman in charge of the agency monitoring the metahuman "crisis." The U.S. President agreed and the DEO was formed that week.
Diana Prince herself agreed to join up as she believed in Bones' vision (but also wanted to keep a close eye on this sinister looking guy in case he turned out to be the villain that he clearly looked like he was born to be) and the rest is history.
Bones has remained DEO Director since the agency's creation, having convinced every sitting president that he's the best man for the job. He may have some dark methods and look beyond evil with the cloud of smoke that follows him everywhere, but he's on the side of the angels.
