It sounds like the window of opportunity for using this plant to murder someone is fairly low, but as the article states:
Digoxin kills by blocking calcium ion channels in heart muscles, which disrupts the heartbeat. But while foxglove poisoning is well known to western toxicologists, Gaillard says pathologists would not be able to identify Cerbera poisoning unless there is evidence the victim had eaten the plant. “It is the perfect murder,” he says.
Of course, the many forensics shows on tv now (not CSI, but the real ones on Discovery and TLC) teach us that if you're going to murder someone how it's done is often less important than how you dispose of the body. I suppose using this would only be extra insurance.
This leads me to a fun question. Have you ever considered murding someone (not necessarily anyone in particular)? If so, how would you go about it? Ah... the morbid thoughts of the holidays.
Dude...
3 words, man, 3 words. Forty fucking five.
If you've never considered it, then you've led a way too sheltered life. Nor ever driven in NY.