On September 9, the family of Yanira Serrano Garcia announced they filed a civil rights lawsuit against San Mateo County and San Mateo Sheriff's Deputy Menh Trieu in Federal District Court in San Francisco for the June 3 killing of Yanira at her home in Half Moon Bay. On August 18, San Mateo County District Attorney Stephen M. Wagstaffe announced charges would not be filed against Deputy Trieu for the killing.

The complaint alleges Deputy Trieu shot and killed Yanira without reasonable cause, which is a violation of the Fourth Amendment's limits on police authority. "The fact of the matter is there was no reasonable basis to shoot her," said attorney Arnoldo Casiallas, who is representing the Serrano family in the lawsuit. The complaint also alleges the shooting was a result of negligence on the part of the San Mateo County Sheriff's office due to its insufficient training of Deputy Trieu, as well as the dispatchers who handled the 911 call.

"They not only killed Yanira, they killed the entire family," said Carmen Garcia Serrano, Yanira's mother. "The goal is to prevent any other family from suffering this kind of pain."

"The only reason we called [911] was because she wasn't taking her medication," she said.

Read More with Photos, Video and Audio | See Also: Family of Yanira Serrano Marches in Response to DA's Decision Not to Indict Deputy Trieu

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