Al was conscientious and did his best to earn his wages; not because he particularly loved killing and spying as a sport, but because the Sawtooth had bought his loyalty for a price, and so long as he felt that he was getting a square deal from them, he would turn his hand against any man that stood in their way.

He was a Sawtooth man, and he fought the enemies of the Sawtooth as matter-of-factly as a soldier will fight for his country.

To his unimaginative mind there was sufficient justification in that attitude.

As for the ease with which he planned to kill and cover his killing under the semblance of accident, he would have said, if you could make him speak of it, that he was not squeamish.
They'd all have to die some day, anyway..