every kid that is frum knows the score
if he does mitzvos he will get rewarded and if not will be punished
with that said any person who goes off has the choice
im not saying that abused by someone isnt scaring. its wrong they should be locked up 4 along time but thats not a reason to go off
he should talk to a professional about it and deal with the issue
when he gets to shamayim hes gonna have to answer 4 all the times he didnt keep shaboss or put on tefillin
nobody is going to be there besides him
{the peaople that did this to him might be punished to a certain extent}
but every person has bechira