Missing California mother's brother-in-law: I've 'lost all faith' in Chula Vista PD, but 'we will not give up'

EXCLUSIVE: Despite multiple bombshell developments this week in the case of a California mother who has been missing for more than three months, her brother-in-law said Thursday that he's "lost all faith" in the local police department to solve this case.
 
"We were hoping for some positive feedback or something -- and there was no positive input on anything," Richard Drouaillet, Maya Millete's brother-in-law, told Fox News after he and his wife met with police in Chula Vista, near San Diego. 

"They just took our information on where we searched. We even asked them some serious questions. We went in there with a few questions of our own, and they couldn't answer anything."

Chula Vista police did not respond to a request for comment Thursday evening. 

Maya Millete, 39, was last seen at her Chula Vista home by her husband, Larry Millete, on Jan. 7, the same day that she made an appointment with a divorce lawyer for the following week. 

Six loud bangs that could be gunshots were captured on a neighbor's surveillance system around 10 p.m. the night that Maya went missing, KFMB-TV of San Diego reported Thursday. A cluster of five bangs can be heard, followed by a sixth bang about 10 seconds later.

Billy Little, an attorney with the Cold Case Foundation who has been assisting Maya Millete's family in the search and investigation, walked through the Milletes' home on Jan. 11, four days after Maya vanished.

On that day, Larry Millete told Little he had gun residue on his hands because he had been shooting in the past several days, Little told Fox News.