'A Tragic, Tragic Loss': FHP Trooper Killed In I-95 Shooting

PALM CITY (CBSMiami) – A 42 year old Florida Highway Patrol trooper was killed in a shooting along I-95 Wednesday morning

The shooting happened near mile marker 107 in Martin County. Both directions of the highway were closed for hours as investigators pieced together what happened.

The deceased trooper identified as Joseph Bullock, a 19 year veteran of the Highway Patrol.

According to FHP Director Colonel Gene Spaulding, the incident unfolded 10:15 a.m. when Trooper Bullock stopped to assist a disabled vehicle.

Spaulding said the driver of the disabled vehicle shot and killed the trooper.

Then an off-duty Riviera Beach police officer saw the commotion, pulled over and killed the suspect

WATCH: Florida Highway Patrol Press Conference On Death Of Trooper Bullock

"Joe did his job quietly every day.  It's a tragic, tragic loss," said Spaulding

Trooper Bullock is survived by his parents and two sisters.

Trooper Bullock was an Air Force Veteran who served his entire 19-year career as a Florida Highway Patrol Trooper in Troop L in Fort Pierce.

The Florida Department of Law Enforcement has been contacted to investigate the shooting.