A group of off-duty San Diego lifeguards is being credited with saving the life of a 57-year-old man who went into cardiac arrest at a restaurant in Ocean Beach.
The incident happened on March 1, around 7:30 p.m. at Blue Water Seafood, where three lifeguards — including Noah Herrera — had just sat down to eat when they noticed a man who appeared to be in distress.
Herrera said the situation quickly escalated…