 Parkman's funeral was held on December 6, an event for which thousands of people lined the streets of Boston.John White Webster (May 20, 1793August 30, 1850), a professor of chemistry and geology at Harvard Medical School, was convicted of killing Parkman in a sensational trial.The murder of George Parkman, and the subsequent publicity surrounding Webster's trial and eventual execution was deeply disturbing to Parkman's widow and children.