All charges dropped against man accused of helping burglars kill Oakland police officer Tuan Le

OAKLAND – Alameda County prosecutors on Wednesday dropped all charges against a man accused of serving as a lookout during a burglary that ended with the shooting death of Oakland police Officer Tuan Le.

The Alameda County District Attorney's Office will not pursue three second-degree burglary charges against Marquise Cooper, 35. The move came just weeks after a judge dismissed Cooper's murder case because prosecutors could not prove he was a “major participant” in the officer's death in late December.

Cooper remained in custody Wednesday morning on charges of violating probation in a Contra Costa County burglary case, but Cooper's attorney said he was “glad” the Alameda District Attorney's Office dropped the case against him.

“From the beginning of the case, we have affirmed Marquise's innocence of the murder charge,” said attorney Ernie Castillo. “Marquise and his family look forward to him coming home soon.”

Three other people – Mark Demetrious Sanders, Allen Starr Brown and Sebron Russell – remained jailed without bail Wednesday after the death of Le. Le had been working as an undercover officer on Dec. 29 when he was shot during a series of burglaries on the city's waterfront.

A judge found in mid-August that there was enough evidence to try the men for murder. A trial date has not yet been set, and all three men pleaded not guilty earlier this year.