DA's office asks for further investigation of deadly Santa Monica stabbing

SANTA MONICA, Calif. - On Wednesday, the Los Angeles County District Attorney’s Office asked police to conduct a further investigation after a 28-year-old man stabbed another man to death near the Third Street Promenade in Santa Monica earlier this week.

RELATED: Man fatally stabbed near Third Street Promenade in Santa Monica

Sean Alexander Graves, of Long Beach, was named as a suspect in the fatal stabbing and was arrested on suspicion of murder, the Santa Monica Police Department said.

On Monday night, Santa Monica police officers responded to a report of gunfire when they found a man suffering from a stab wound to his neck.

The victim was taken to a local hospital by paramedics where he died. 

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The victim's name was withheld pending notification of his relatives, and police did not release his age.

 Officers learned an altercation between the victim and a male and female began near the Santa Monica Pier and ended up in the 300 block of Broadway where the victim was stabbed,'' according to a police statement.

Authorities said witnesses who were with the victim provided a description of both suspects along with their last known direction of travel.

Police said they detained Graves and a female who both "were identified by the witnesses as the subjects involved in the incident" and found a knife believed to have been used in the stabbing. The female was interviewed and released, according to police.

City News Service contributed to this report.