Whiskey bon-bons

Whiskey bon-bons are caramel flavored sweets used by Johan Liebert to kill his enemies. Johan gifts a packet of poisoned candy and gifts it to his victims, who later die of poisoning. The brand used in the anime is Werther’s Original a brand owned by the German company August Storck KG.

Eisler Memorial Hospital incident

 * Main article: Downfall



At the Eisler Memorial Hospital, Udo Heinemann, Dr. Boyer and Dr. Oppenheimer visit Johan Liebert, who is in recovery after the successful operating conducted by Kenzo Tenma. Dr. Oppenheimer announces that we will be dismissing Dr. Tenma from the Liebert twins case and opens a whisky bon-bon packet that was gifted to Johan by the citizens of Düsseldorf. Heinemann, Boyer and Oppenheimer eat the candy.

Later that night at the hospital, a nurse discovers the dead bodies of Dr. Boyer and Dr. Oppenheimer in a meeting room. Eva Heinemann arrives at the Heinemann residence and finds that his father, Dr. Heinemann, is dead sitting on a chair in his studio.

Czech police incident

 * Main article: Detective Suk



Detective Patera, a senior officer of the Prague police, meets in a bar with Johan who is disguised as Anna Liebert. He diches him, but gifts him a packet of whiskey bon-bons.

Later, Detective Patera meets with fellow officers Detective Janáček and Commissioner Hamrlík. The three discuss what their next move will be after being discovered as underground operatives of the Czechoslovak Secret Police by Jan Suk. Patera takes out and opens the packet of whiskey bon-bons and offers Janáček and Hamrlík a candy.

After that, it is revealed that Patera, Janáček and Hamrlík have died because they ate posioned candy.

Victims

 * Udo Heinemann
 * Dr. Boyer
 * Dr. Oppenheimer
 * Detective Patera
 * Detective Janáček
 * Commissioner Hamrlík

Trivia

 * In both incidents, two innocent people are suspected with the killings, but later cleared of all guilt: Dr. Tenma is considered guilty and chased for the Eisler Memorial Hospital incident, while Detective Suk is considered the prime suspect of the killing of Patera, Janáček and Hamrlík.