An armed gunman was fatally shot in southeast Houston after the convenience store clerk’s son came to the rescue. Usman Seth was at his father’s local grocery store when a masked man carrying a shotgun came into the store demanding his sister, who was at the cashier counter, give him all their money. Seth’s father handed him their store handgun and he quickly shot the suspect in the leg. The gunman continued to point his weapon while hobbling on one leg - fearing for his life and his family Usman Seth shot him several more times in the torso. Police arrived within minutes but the gunman, later identified as Sam Abugalboush, died at the scene.Sources: www.youtube.com/watch?v=tKUFbvD5KRQ CCTV video edited by me:Local news story without fatal shot footage:Sam Abugalboush had a prior criminal record: