A second man has died following last Thursday's arson attack on a convenience store in south London, Scotland Yard said Wednesday. The victim was named as 31-year-old Hamidi Hamidullah, an Afghan national who worked at the food store in Clapham Road, Kennington, in south London. A Scotland Yard spokesman said a post mortem examination will be held later today.Co-worker Khizar Hayat was burnt to death when he was trapped in the store following the daylight attack. A 33-year-old man has been arrested by detectives hunting a suspected racist firebomber believed to be responsible for three separate attacks on stores run by Asians in south London over the past three weeks. The arrest was made last Monday at an address in south London. Last weekend police revealed details of two other attacks thought to be linked to that in Kennington which has now claimed two lives.