It depends of the crime and the individual. However, there are crimes that have no reasons, except the subject's personal choice. Let's put it this way: A personal can rob a store because he is hungry; so, hunger is the reason. The list can get long. For example, hatred, jealousy,ambition of power, revenge, enmity,etc.
by clearly stating your personal reasons for not taking drugs
The fact that they buried their dead with personal items such as clothing, jewelry, tools and weapons suggests that they had a belief in the afterlife.
The English Reformation was initiated due to personal reasons of one leader and continued by another leader in an attempt to return England to the Christian faith
Some of the conspirators undoubtedly killed him for personal reasons, but most, like Brutus, truly thought that they were saving the republic and that the entire city would be grateful to them.
Adolph Hitler killed jews for his own personal reasons.
An aircraft (plane, etc) that is used for personal reasons, as opposed to commerial reasons (to make money).
For personal fun
Not all do and if they do, it is for their own personal reasons.
Personal reasons.
A personal hotspot cannot work on a plane for safety reasons.
Power, Control, Religion, Cheap Abundant Land, and Personal Reasons
If you mean the day that he finally reappeared in school then in biology class, he told her that he was out for personal reasons or family reasons. Something like that, I think it was personal reasons. Hope I helped :)
Caring about women.
revenge
what accounted for the proliferation of pc
revenge