Lab technicians are working to identify a substance found in a letter addressed to the White House that could be cyanide.
The Secret Service says an envelope addressed to the White House has tentatively tested positive for cyanide.
A University of Pittsburgh researcher charged in the cyanide poisoning death of his wife last year was convicted on Friday of first-degree murder.
The maternal grandmother of a 6-year-old girl is seeking child support from a University of Pittsburgh researcher jailed on charges he fatally poisoned his neurologist wife with cyanide.
The 6-year-old daughter of a University of Pittsburgh medical researcher and the neurologist wife he’s accused of poisoning should continue to live with the victim’s parents until his trial, a judge ruled.
There are new details into the shocking death of a prominent neurologist from Maryland. Her husband is accused of poisoning her with cyanide.
Detectives arrest the husband of a talented doctor from Maryland after she mysteriously dies from cyanide poisoning.
A renowned doctor from Maryland mysteriously dies, and then comes word she was poisoned with cyanide. Now the FBI is stepping in to help with the investigation.