Man with mental age of less than 10 was shot by Army in field in this year . British government later apologised and investigation re-opened 1974 . A former British soldier has now been arrested over the death . The suspect has been taken to Northern Ireland for questioning .
Man with mental age of less than 10 was shot by Army in field in 1974 . British government later apologised and investigation re-opened this year . A former British soldier has now been arrested over the death . The suspect has been taken to Northern Ireland for questioning .