We know D.C. Get our free newsletter to stay in the know.

Millicent West, who resigned Monday from her position as head of the Homeland Security and Emergency Management Agency, was asked to resign at Mayor Vince Gray‘s behest, multiple sources have confirmed to LL.

West, you should know by now, was head of the Children & Youth Investment Trust Corporation during part of the time that disgraced former Ward 5 Councilmember Harry Thomas Jr. was using the CYITC to steal more than $350,000 in city money. Court records filed as part of Thomas’ plea deal show that West helped Thomas secure more than $100,000 from the CYITC to pay for an inaugural ball that was held at the Wilson Building in 2009. West has defended the expenditure as legitimate and denied any wrongdoing. She’s not been charged with any crimes.

A source within the Gray administration says the mayor’s decision to seek West’s resignation came after an internal investigation into her conduct at the CYITC. The results of the investigation: West didn’t do anything illegal, but showed enough poor judgement in the Thomas affair that she needed to go, the source says.

West couldn’t immediately be reached for comment.