What Motive Does Israel Have in Deliberately Killing Humanitarian Aid Workers?

Chef Jose Andres, founder of World Central Kitchen, has accused Israel of intentionally killing 7 relief workers serving with his organization on April 1st.  

"We were targeted deliberately, nonstop, until everybody was dead in this convoy," said Andres. He also claimed the IDF targeted his relief workers "systematically, car by car."

Now it is understandable that Andres is angry, upset and in grief at the loss of 7 people who devoted their lives to his organization. However, Andres' accusation was echoed by World Central Kitchen CEO Erin Gore who stated, “I am heartbroken and appalled that we—World Central Kitchen and the world—lost beautiful lives today because of a targeted attack by the IDF."

There is no question something went horribly wrong on the part of the IDF as exemplified by the apology given by IDF Chief of Staff Herzi Halevi while Israeli Prime Minister Benjamin Netanyahu accepted responsibility for the fatal error. 

But why on Earth would the IDF deliberately want to target World Central Kitchen and its workers? Aside from being barbaric, cruel and inhumane, the IDF and Israel at large gains nothing from their deaths. So where is the motive on the part of Israel to kill these humanitarian workers?

Unless, of course, Andres and his organization are engaging in defamation and simply wish to cast aspersions on Israel and the Jewish people. Andres has claimed that Israel is engaged in "a war against humanity itself." So, what exactly does that make Hamas?

Naturally, I hope this isn't the case as Andres and World Central Kitchen have done good work around the world. In fairness to Andres, he did stick up for restauranteur Michael Solonomov when his restaurant in Philadelphia was the target of an anti-Semitic mob last December. 

Yet for Andres to suggest, without evidence, that Israel deliberately killed members of his organization could cause retaliation against Jewish civilians in Israel and beyond. If Jose Andres believes there has been enough killing, then why say things which are likely to cause more killing?