The use of beta blockers by the LA robbers a few years back was clever.
Stay calm. Carry on.
But the use of any psychotropics by Mr. Holmes is clearly medication or self medication as he began experiencing psychosis.
Ban mental illness, not tools like rifles.
Re: premeditation: yes, very much. He was clever too. And psychotic. The psychosis means the premeditation is not the same as regular "lying in wait". You may want revenge, but not here.
PS: why are connecticut kids more valuable than afghani kids?