The day after an assistant campaign treasurer to Mayor Vince Gray’s 2010 campaign pleaded guilty to campaign finance violations, another aide has been charged for making false statements to federal investigators.

Howard Brooks was charged today for lying regarding his role in the ever-evolving scandal involving Gray’s campaign and former fringe candidate Sulaimon Brown. While Gore was found to have illegally steered money orders to Brown as part of a plan to keep him on the attack against Mayor Adrian Fenty, Brooks was initially pointed to as having handed Brown envelopes full of cash to keep him in the race. Once federal investigators started looking into the claims, Brooks began cooperating, so much so that he wore a wire during a conversation when Gore admitted to destroying evidence related to the payments to Brown.

While Brooks could face up to six months in prison for lying, he may serve less time—if any time at all—due to his cooperation. According to WUSA9’s Bruce Johnson, Brooks took a deal that spared his son, who was also linked to the scandal.

The next big question is who’s next and how high the scandal will climb. The Washingtonian’s Harry Jaffe wrote yesterday that more people could fall:

There’s more bad news for Vince Gray to follow the fall of Tom Gore. My sources say Gore is not the only Gray insider who has been talking to federal authorities. Among them are advisers Green, Vernon Hawkins, Howard Brooks, and Jean Harris, whose offices were raided by the FBI.

Another problem for Gray might be that according to my sources, Mark Long has been talking to federal agents. Long has run for city council and now works for at-large council member Vincent Orange. Long also worked for Jean Harris, contributed money to the Gray campaign, and served as Gray’s driver at various times during the campaign. Drivers hear lots of things. How good is Long’s memory? Does he have recollections that might incriminate the mayor?

Gore’s lawyer Fred Cooke said yesterday that he believes more people will be charged.

As for Sulaimon Brown, he sent out a statement today in which he said that Gray should resign. Gray has referred all questions to his lawyer, who has said that he has no comment.

UPDATE, 1:50 p.m.: For those of you interested, there is one picture of Brooks floating around. DC Porcupine has it here.