Exactly thirty years later, authorities are still trying to figure out who poisoned the bottles. "It's a horrific crime and it's gone unsolved," an FBI spokesperson told ABC News. No one has been charged with the murders.
But this week the Chicago Sun-Times reported that state prosecutors are considering commissioning a grand jury to compel more witness statements. No decision about the grand jury had been made yet. Authorities have long suspected that a man named James W. Lewis may be responsible for poisoning the bottles. Lewis had served 12 years in prison for sending an extortion note to Johnson & Johnson, Tylenol's parent company, demanding $1 million to "stop the killings." And in 2009, the FBI searched his home, Fox News reported. Yet even though Lewis was imprisoned for extortion related to the murders, he was never charged with the actual murders.
"You’re either at the point where you can charge someone or you’re not. We are obviously not in the position to charge right now but we are farther along,” an FBI spokesman told the Sun-Times this week. “The task force is still in place, they’re still actively reinvestigating the case."
Tylenol products were later reintroduced with a triple-seal, tamper-resistant package. An oral history about the murders is available on Chicagomag.com.