Authorities have said they do not suspect foul play in the death and said they have no evidence that the cyanide represented any terrorist threat.
While I have no doubt that this man dies by his own hand in a stupid accident, I have to question the ruling of suicide and the claim there was no sign of a terrorist threat.
First of all, cyanide is a very painful way to die. It can take between 5 and 9 minutes merely to lose consciousness, during which time your muscles are all contracting, and the victim feels excruciating pain. Why would an intentional suicide choose such a method? A gunshot or a fall off a building is almost instantaneous, and far easier to obtain than a pound of cyanide.
Second, why go to the trouble of acquiring a whole pound of cyanide? 10 milligrams/kg is the LD50 dose for Cyanide, which works out to a bit over 3 grams of cyanide for a 150 pound man. So, a tablespoon of cyanide is a guaranteed lethal dose. Why a whole pound? That's enough to kill hundreds of people!