Rosenwald interviewed one Jason Nolan via email (which is a common-enough way of interviewing people these days, not just those of us with Asperger's). Nolan wrote "Given his love of computers and digital technologies such as video games,” Nolan wrote, “Adam Lanza’s decision to destroy his hard drive may simply have been his first act of self-annihilation, especially if he regarded his computer as an extension of himself and his identity."
Nolan joins in on the speculation about Lanza's sources of identity, even though when he writes about himself as an Autistic person, he merely says "Social technologies can be a lifeline for anyone who is unable to find the support they need in their face-to-face community.” That statement makes sense; the one about self-annihilation and a hard drive as an extension of oneself is psychobabble. None of the Autistic people I know, including myself, confuses ourselves with our hard drives or any other computer component.
For many Autistic people, as well as for many non-autistic, presumably "normal" people, going online is a way to make friends, not to plot murders. Personally, I have made lifelong friends via online contacts, many of whom I now enjoy in-person contact, which Rosenwald privileges as "more important" and somehow as a counter to murderous impulses. Although computers have been with us for only a few decades, humanity itself has been prone to murder since time immemorial. One thing that is different in current times, and which I am not going to address in this post, is easy access in the U.S. to multi-round, fast-operating guns. Computers don't cause murder; guns do.