By Dan Mangan, CNBC •
Updated 2 hours ago
WIN-Initiative | Neleman | Stone | Getty Images
A Missouri man who tried to buy a highly lethal chemical weapon with the cryptocurrency bitcoin on the dark web told the would-be seller, "I plan to use it soon," federal authorities said.
Writings found within the Columbia home of the man, Jason William Siesser, "articulated Siesser's heartache, anger and resentment over a breakup, and a desire for the person who caused the heartache to die," the Justice Department said in a press release.
Siesser, 46, was sentenced to 12 years in prison on Tuesday after having pleaded guilty last August to attempting to acquire that weapon and to aggravated identity theft.