>>20745362
There is a reason behind
He was forced to kill himself
Let me break it down. In the fate series, a master is given a servant, some knight of legend, with a story behind them. Anyways a Master of a servant has a command seal which has 3 uses, they can be used to make your servant do anything
Anyways in this scene, a master made a deal with another master, he would spare his life if the guy used his last command seal to make his own servant kill himself, which he did, and so he was spared
Then he was shot by the guys partner
This will explain it all
http://youtu.be/erpvTsKkDw8?t=3m8s