Not a new article but scary anyway...
Cyanide In Curry Poisoning A Mass Murder Bid
The New Straits Times, July 28, 1998
Tokyo (Japan) - Japanese police have mobilised a 150-strong squad to investigate a cyanide-laced curry poisoning that left four people dead at a town's summer festival. Sixty people were also hospitalised in connection with the poisoning. The senseless killing stunned the nation and police feared copy-cat killers could emerge.
Japan noted for its multiple murder cases have experienced deadly cases of cyanide previously.
In 1948, a man posing as a health official walked into a Tokyo Bank saying he was conducting a dysentry check. He used cyanide to poison to death 12 bank staff in an extortion bid.
In 1977, two high school students died after drinking a can of cola tainted with cyanide that was left in a telephone booth.
There have also been several extortion bids in the country in which cyanide was injected into food such as chocolate.