Apparently, that’s one excuse being bandied about for the “home-grown jihadi” that the FBI just snapped up in Pennsylvania (reading between the lines, it’s an open question whether this one would have been able to get to his target without shooting his own head off). Speaking as a geek, I know people with Asperger’s*. Last time I checked, it’s not a condition that encourages people to go around murdering other people. To put it mildly.
*Also speaking as a geek, I know rather more people who have self-diagnosed themselves with Asperger’s, in lieu of obligating themselves to fully cope with the outside world.