On day 11 of our Twelve Nightmares Before Xmas, we get into the Chicago Tylenol poisonings that happened in the 80's.
Were these seven murders orchestrated by a mathematical genius or by a self absorbed sociopath?

Intro/Outro music courtesy of Alexander Nuttall @WeAreDinoPig
Animation courtesy of @VERTIGOJAXX
Outro music courtesy of Dave Mustardface