Why did that Catholic priest die?

The BBC seem confused as to why Islamist terrorists would cut a French Catholic priest's throat.

Maybe the BBC should read this post of mine from two weeks ago, here's the most pertinent part (I've emphasised the really key parts in case the BBC are even more blind to reality than I thought):

'The so-called Islamic State urged its followers to attack French people with vehicles well before the deadly attack in Nice.

A speech two years ago from the jihadists' spokesman, Abu Mohammed al Adnani, encouraged devotees to turn to more basic methods of terrorism if they could not obtain guns or explosives.

"If you are not able to find a bomb or a bullet, then smash his head with a rock, or slaughter him with a knife, or crush him with your car, or throw him down from a high place, or choke him, or poison him," he said.

In his remarks, Adnani singled out "the spiteful French" amid a long list of enemies topped by "the disbelieving American" and their allies.'

In recent weeks in Europe as well as bombs and bullets we've had people crushed by a truck and killed by a knife, that leaves smashing heads with rocks, throwing people from a high place and poison. Would you care to wager how long before Western Europeans experience these types of atrocities as well?