- How she joined the cult: During the Summer of 1968, Leslie met and moved in with Catherine Share, Bobby Beausoleil, and one other woman. The group eventually parted ways shortly after, and Leslie followed Catherine to join Manson's commune, the Spahn Ranch in LA County. She was 19 at the time.
- Which crimes she committed: On Aug. 9, 1969, Leslie was among the group of Manson family members instructed to murder Leno and Rosemary LaBianca. Though she didn't technically kill Leno and Rosemary, she did stab Rosemary over a dozen times post-mortem since Manson had instructed Tex Watson to make sure everyone in the group actively participated in the murder.
- What her sentence was: After a raid on the Spahn Ranch, Leslie was briefly booked by police on Aug. 16, 1969 for auto thefts before she was ultimately arrested that December for the murders of Leno and Rosemary LaBianca. On March 29, 1971, Leslie was convicted of murder in the first degree and conspiracy to commit first degree murder. She was sentenced to death, but was eventually given life in prison following the California Supreme Court's People v. Anderson, which briefly outlawed the use of capital punishment. She remains in prison to this day.
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