Not as I understand it.
If I lost control of my car and ran you down, I would have killed you, but not murdered you.
If I step on a landmine, it is grammatically correct to say "I was killed by a landmine", even though a landmine cannot have intention.
Murder requires intention. Kill does not. The article, written by (presumably) a professional writer and edited at a professional publisher, almost certainly wanted to achieve the sleight-of-hand effect that they have achieved with you - to make it seem as if those deaths were intentional.
This is partly why I am skeptical about the narrative they are selling.