How would that account for a hush up? Unless he was a very powerful person in the community or church, which i don't think was the case.
Also, what hush up? The reason this case is remembered is that it brought forth a huge public response.
It's also remembered because of the hush-up. No one in the town would talk to journalists. The death wasn't reported in local papers, the Gardai did not put out a press release, it was only because Emily O'Reilly did investigative reporting that it made the newspapers at all.