Alleged cartel leader, 3 others arrested in Chula Vista pizzeria cold-case slaying

Ryan Cunningham stumbled into the lobby of a downtown Chula Vista pizzeria, made it past kids playing video games, then fell. The 22-year-old had been stabbed, attacked by a group of men on the restaurant patio on a busy Saturday night in 2004.

He did not survive. For more than two decades, his slaying remained unsolved.

The District Attorney's Office released last year a composite sketch of a suspect in the 2004 fatal stabbing of 22-year-old Ryan Cunningham in Chula Vista. (San Diego County District Attorney's Office)

On Tuesday, nearly 22 years since Cunni...