Just a few hours before he walked to the Jewish settlement, before he climbed over the security fence and knocked politely on the front door of the Salomon family home, Omar al-Abed posted his last will and testament on his Facebook page.

“All I have is a sharpened knife,” he wrote last week, “and it answers the call of al-Aqsa.”

The young Palestinian, who was majoring in business administration in college, rambled on in his social media posts in badly written Arabic. He wore a clean white shirt and pressed jeans, and carried a large knife to the murder scene.

He vowed to die a glorious martyr’s death and left instructions for his imagined burial rites. He thumped his chest as a true “Son of Palestine.” He ranted against some on the Palestinian side — and he called Jews “pigs and monkeys.”