Alejandro Ernesto Castillo was 30 when he was shot and killed in the late afternoon of September 18, 2017, at a Boost Mobile store at 6823 Longview Road in south Kansas City. Born in El Salvador on March 19, 1987, Castillo was raised in Riverside, California, and described by family as humble, loving, and deeply connected to a large, spirited family. He enjoyed games such as Magic and League of Legends, sports, reading, and monthly trips to the movies.

He re-entered the store to intervene; a struggle followed and the suspect shot Castillo, who died at the scene. The shooter ran off on foot and there were no immediate arrests. Funeral services were held on September 23, 2017, and investigators appealed to the public for information.

If anyone remembers that day at the Longview Road Boost Mobile or has information about the suspect, please come forward.