Charles Manson is a former leader of the Manson cult.
 David Smith, who had studied the effects of LSD and amphetamines in rodents, wrote that the change in Manson's personality during this time "was the most abrupt Roger Smith had observed in his entire professional career
On September 25, 1984, Manson was imprisoned in the California Medical Facility at Vacaville when inmate Jan Holmstrom poured paint thinner on him and set him on fire, causing second and third degree burns on over 20 percent of his body

