The purchase of the cyanide on his university credit card -
I can tell you this is a very unorthodox way of getting his supplies. All lab supplies usually are ordered via a research assistant, who writes up the request and then it's submitted to a central person to be purchased. When it's done this way, there is a paper trail that it was ordered and when it is received it is entered into the central purchasing system as received and delivered to



on this day at this time - usually they would call the research coordinator or assistant to come to sign for and pick it up.
And believe me, for the doctors I worked for (who did research and saw patients a day or two a week), it was a wonder they could wipe their own behind in the bathroom let alone purchase anything needed for their lab THEMSELVES. These are very pampered men and women.