The Mystery of Paul Webb King

15,000 bottles of excedrin were collected and put through an X-ray machine. Only one more was found to contain cyanide-elaced capsules. Paul Webb King was officially cleared as a suspect after taking a polygraph test. Washington State affected a 90-day ban on the sale of all non-prescription medication in capsule form. Drug companies impacted by the ban came together and offered a $300,000 reward for the capture of the person responsible.