Can synesthesia in autism lead to savantism?

Daniel Tammet has memorized Pi to the 22,514th digit. He speaks ten different languages, including one of his own invention, and he can multiply enormous sums in his head within a matter of seconds. However, he is unable to hold down a standard 9-to-5 job, in part due to his obsessive adherence to ritual, down to the precise times he has his tea every day.

Daniel is a savantHe is also autistic.And he is a synesthete.

Can we please not?

Can we please not blame mass killings on people’s brains? Can we not say that Adam Lanza committed the Newton, Connecticut massacre because he might have beenautistic? Can we not say that Tamerlan Tsarnaev, the deceased Boston Marathon bombing suspect, might have committed the crime because he had boxing-related traumatic brain damage? Can we not say that his younger brother, Dzhokhar Tsarnaev, aided in the bombings because he was a teenager and his brain hadn’t fully developed yet, and thus he was easily influenced by his radical older brother?