Islamic State supporters #fundie nzherald.co.nz
The method of murder raises the chilling prospect that ISIS may have been influenced by the Twitter campaign, which used the Arabic hashtag #SuggestAWayToKillTheJordanianPilotPig to elicit ideas from the terror group's supporters.
In the days after Kassasbeh's capture - which occurred on December 24 when his F-16 fighter jet suffered mechanical problems and crash-landed close to Isis' Syrian stronghold and de facto capital Raqqa - militants used Twitter to crowd source ideas for his execution.
A film clip featuring a woman who claimed to be the mother of a Syrian man killed in a coalition airstrike suggested 'impalement, not with a mercy shooting or a mercy knife.'
Another horrific idea from a Twitter user calling himself Abu Ishaq Sophistication was to either place Kassasbeh in a tank and set it alight, or to use acupuncture needles dipped in acid to disfigure him, before cutting of his head and sending it head back to Jordan.
A second hashtag labelled #WeAllWantToSlaughterMoaz and carrying more brutal execution ideas and videos of children killed in coalition airstrikes, was retweeted over 11,000 times.
It is not known whether any of those taking part in the campaign - including the organisers of the hashtag - have any sway with the Isis leadership and whether any of the ideas influenced the eventual decision to murder Kassasbeh by burning him alive.
But what the horrific suggestions do show is the outrageous levels of barbarism and hatred among Isis' supporters, many of whom live in the West, far from the terror group's self-declared caliphate.