Gary Beck, 47, chased an armed robber who had held up a Bath taxi office with a handgun. Mr Beck also threw a bin and fire extinguisher at him. During the chase down Westmoreland Street, Mr Beck collapsed and had to be rushed to hospital. The robber has not yet been found. He stole £545 in cash.
We've been speaking to Gary and will have more on this story on tonight's ITV Westcountry News at 6pm.