I mean, he is a murderer. It is first degree premeditated murder to raise the price of a lifesaving drug over 5000%. You saw the Daily Show bit where some Australian high school kids made the same drug, at the same level of purity, for $2 a dose? And Shkreli said he had to raise the pill price to $750 because the manufacturing and research costs were so high. No research was done on the drug since 1950 or 1960.
A murderer. I don't know how many people he killed, so he might actually be a mass murderer.
You talking about "appearance" is a clear indication of you not having any clue as to how reading people works.