Dr. George Parkman disappeared at the Medical School in one of the most famous murder cases in Harvard history. Earlier, Parkman had lent money to colleague Dr. John White Webster. To secure the loan, Webster gave Parkman a mortgage on his personal property, including a valuable collection of minerals. When Parkman learned that Webster had backed another loan with the same collection, he began relentlessly pursuing Webster to collect the debt. A week after the disappearance, a suspicious janitor broke through a brick vault below Webster’s lab and found human body parts, which the authorities soon discovered all around the lab. Found guilty of first-degree murder, Webster belatedly confessed and appealed for clemency, but was hanged on Aug. 30, 1850. Parkman’s widow led a fund drive to support Webster’s wife and children.