However , Republican sources state he was shot on the main Swanlinbar - Enniskillen road by undercover British troops in an unmarked civilian car , who opened fire at an IRA checkpoint .
The CAIN Sutton Index lists him as being shot during an attempted bus hijacking .
Republican sources state he was shot on the main Swanlinbar - Enniskillen road by undercover British troops in an unmarked civilian car , who opened fire at an IRA checkpoint .
The CAIN Sutton Index lists him as being shot during an attempted bus hijacking .