Alberto Ramirez Marquez, 54, died of a gunshot wound after an argument inside a home on Agua Tibia Avenue near East L Street in Chula Vista on November 26, 2021. Police and paramedics tried to save him but he was pronounced dead at the hospital.

Authorities identified 48-year-old Martin Ralph Morales as the person who allegedly shot Marquez during the afternoon altercation. Morales fled in a dark sedan and was detained by U.S. Customs and Border Protection at the Otay Mesa Port of Entry on December 1, 2021, while attempting to cross from Mexico; Chula Vista detectives then arrested him on suspicion of murder and he was held without bail at the Chula Vista City Jail. Reports say Marquez and Morales knew each other prior to the incident, but officials did not detail their relationship.

Anyone with information about the shooting or the events leading up to it is asked to come forward.