A murderer who had poisoned his victims with iron supplements eventually and inadvertantly poisoned himself.

When he realized his mistake, he immediately called the police and confessed to all of the killings before laying down upon his death bed awaiting his own end, the same end that he had inflicted upon so many others. News media quickly came to the hospital and the killer was eventually asked two questions by two seperate reporters, one question following the other so quickly that he could not respond to the first before hearing the second. The first reporter asked, "How did the coffee taste that tipped you off into realizing you had poisoned yourself?" Where the second reporter blurted out, "How would you describe this situation where you have killed yourself by the very means you used to kill others?"

The murderous man only responded once before breathing his last breath:

"Irony," he replied.