Update on Monday, May 8, 2017: A viewer submitted video from the scene of a fatal officer-involved shooting over the weekend.

A Tarpon Springs police officer shot and killed a 25-year-old man on Saturday afternoon near the intersection of Tarpon Avenue and Safford Avenue.

Family members identified Nick Provenza as the victim.

10News decided to put a block box over the victim’s body, but wanted viewers to see the officer’s reaction after the shooting at the scene.

Last December, Nick's father Charlie Provenza sat down with 10News to share his frustrations with Florida's mental health system.

Original story on Saturday, May 6, 2017: One man is dead after a shooting involving an off-duty police officer at a car show Saturday, Tarpon Springs police said.

Around 1:30 p.m. Saturday, the off-duty officer was told by car show visitors that there was a suspicious man near Tarpon Avenue and Safford Avenue. The man was wearing an orange jacket with the hood over his head.

The officer made contact with the man and asked for his name and date of birth. When the information was radioed in, no match was found. The officer said he was given a false name and said he was given another one.

After some silence, the next radio call received was the officer reporting shots fired and "He came at me with a knife," police said.

The suspect was transported to Florida Hospital North Pinellas, where he was pronounced dead. The officer was not injured.

The Florida Department of Law Enforcement will handle the investigation, along with the Pinellas County Sheriff's Office Forensics unit.

Neither the name of the suspect nor the officer involved is being released at this time.

Anyone with information is asked to call FDLE's Tampa Field Office at (813) 878-7300.