Eightfold path...
And what is right action? Abstaining from taking life, from stealing, and from illicit sex [or sexual misconduct]. This is called right action.
Saccavibhanga Sutta
The First Noble Truth drove him around the bend.
Maybe he was a disciple of that not so well known sect led by Swami Matthari Ramayandayan (or, "Mohammad", for short) who distilled the "eightfold path" down to a simple ascetic single fold path exemplified by the Swami's saying of:
"Kill Them! Kill Them All, Buddha-Dammit!"