This didn't make national news for a reason.
https://crimeresearch.org/2017/11/t...-public-shooting-auto-shop-rockledge-florida/Two concealed handgun permit holders stop mass public shooting at auto shop in Rockledge, Florida
Two concealed handgun permit holders stopped an attack at Schlenker Automotive repair shop at 4:30 PM on the Friday after Thanksgiving. The attacker, Robert Bailey, was armed with a .45-caliber handgun and "multiple magazines" and killed one person and severely wounded another in the business' parking lot. Bailey continued shooting inside the shop. From Florida Today:
According to news reports, Bailey had no connection to the auto shop. Indeed, he didn't even own a car. It appears as if Bailey had selected this target simply to kill people.