EdenOne 9 hours ago
This could also be a terrorist attack in the classic sense, targeting a Christian church. To me that's the most plausible scenario, but the possibility of a disgruntled person linked with the congregation is also not to be discarded.
Very unlikely to be an islamic attack because the perpetrator would not have suicided, he would have engaged the police to "kill and be killed" in order to obtain the bonus points in islamic paradise.
RB