Maybe their Krispy Kreme poison can be slow working. And randomized! Maybe it can be nanobot Krispy Kreme infection that can be triggered by radio control!
'Hell Bound'
The Minearverse 3: The Network Is a Harsh Mistress
[NAFDA] "There will be an occasional happy, so that it might be crushed under the boot of the writer." From Zorro to Angel (including Wonderfalls and The Inside), this is where Buffistas come to anoint themselves in the bloodbath.
And randomized!
You totally randomise. Put them in a bit of the Boston Creme mix, and Bob's your uncle.
Hey, that's a good question. Is the longer time to apprehension related to a longer span between crimes? It seems like it would take longer to court, marry, kill, rinse, repeat than it would to just kill all the nurses in the Philadelphia area or something.
You really want your classical mysterious two-step Asian poison.
Half the poison goes in the Krispy Kremes. The other half is smeared on the victim's telephone. Neither half separately registers as a poison, but put them together and whammo!
God, I miss '30s pulp fiction.
Hell, just dust them with arsenic powder. You could pretend you're Harriet Vane.
Okay Adam spilled the beans at the FF board so I can say it:
He's gonna be on The Inside.
Maybe their Krispy Kreme poison can be slow working
And here I thought Flowers in the Attic had been successfully scrubbed from my brain.
Oooh!
Duuuude. That's so very cool.
Woo! ADAM!! Wooooo!!!