It is of course important to concentrate on those who carried out the Jokela and Columbine massacres and the ideas that led them to do so,
What makes you think that it is possible to know for certain what "ideas" led them to commit such heinous acts?
but we also need to go a little deeper and consider another factor behind those events
Without the killers being alive to testify what drove them to commit their atrocities it isn't possible to go any deeper without resorting to base speculation. Any result you would come up with would be biased towards your own preconcieve notions of what you think drove them to such acts and not in anyway reflective of the actual motives.
That factor is the Darwinist education still being provided in schools
Which has fuck all to do with these school shootings?
Students in the USA and Europe are taught the nonsense that life on Earth began spontaneously
Because all credible and accepted science confirms those ideas.
and that human beings are an advanced form of ape that emerged by way of natural selection,
You are claiming that. No serious biologist or biology teacher makes any claim like that. The ToE does not say that humans are "an advanced form of ape", but only that humans and apes share a common ancestor.
as if these things were scientific fact
Because they are as close to a confirmed fact as science can get.
Jokela and Columbine killers were people who had received this Darwinist education provided in Western society
And so are millions of other school students that don't go around shooting their classmates. Therefore it is not at all credible to suggest that the teaching of Darwinian Evolution either motivated or directly caused those shootings. Your assertions are nothing more than poorly thought out Post Hoc, Ergo Propter Hoc. In fact the very act of shooting your classmantes would be in direct opposition to Darwinian theory because that represents a form of unnatural selection.
Therefore, although the attackers were school students, in effect the schools were themselves responsible.
You are jumping ahead to a preconcieved conclusion without even confirming your basic premise. You can't blame either the schools or the ToE unless you can prove that they where the main motivation for the shootings, and you have not done so. You haven't even attempted to do so. Just because you assert that X happened because of Y does not mean that Y was a direct result or X, it just means you want people to take your word that that premise is true, even though you lack any evidence whatsoever.