Presidential candidate Julian Castro joins Black Lives Matter protest in L.A.

Former Secretary of Housing and Urban Development and San Antonio Mayor Julian Castro joined members of Black Lives Matter Tuesday as they demand that police officers who shot and killed a man running through a mall carrying a long knife be held accountable.

Castro and Black lives officials held a news conference outside Los Angeles Police Department headquarters. The issue centers on the shooting on April 10, 2018, of 30-year-old Grechario Mack, who ran through the Baldwin Hills Crenshaw shopping mall armed with a foot-long kitchen knife.

The Police Commission, the civilian panel that supervises the LAPD, ruled that the final shots fired by the two officers, while Mack was on the floor, violated policy.

After the news conference, Castro will attend a roundtable on veterans' homelessness at the Rosslyn Hotel on Fifth Street and later join supporters in Los Angeles at a lunch reception. His L.A. visit will end today.

On Thursday, Castro will deliver a foreign policy speech at his alma mater, Stanford University, and attend a reception with supporters in San Francisco.