I've been thinking:

Arin Ahmed is a female Palestinian terrorist from Beit Sahour, a suburb of Bethlehem.

In May of 2002 she strapped a bomb onto her body and set out to murder Jews in Rishon Letzion, part of a double suicide bombing.
While on the way she changed her mind and returned home. Her partner continued on, exploded himself in a walking mall, killing 2 and wounding 41.

Arin turned herself in and she was just convicted of aiding in a terror attack.

The Israeli court sentenced her to 3 years imprisonment. She will be out in 6 months because of time served before the trial.

Why?
Why only three years for facilitating a terrorist attack?
Because she cooperated with intelligence and justice authorities.

This raises a critical question.
Can a terrorist repent?
And if he/she does should that effect the punishment?

Arin Ahmed did not actually kill anyone. But she was certainly part of the process.

Any cooperation from a terrorist becomes very important in protecting the homefront. When terrorists freely talk, they solve all kinds of mysteries -- how things are done, the process of the cell, links to leaders higher up the food chain, intel about activities...

Information is worth a short sentence---not contrition.