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Worlds Worst Mom — Theresa Knorr

Theresa Knorr: Worlds Worst Mom

Worlds Worst Mom:AccusedTheresa Knorr·Also namedWilliam Robert Knorr·Robert Knorr Jr.·Clifford Clyde Sanders·Rosemary Norris·VictimsSuesan Knorr·Sheila Knorr

Case at a glance

When
July 1984 and June 1985
Where
Sacramento, Squaw Valley area and Truckee, California
Perpetrator
Theresa Jimmie Knorr (born Theresa Cross)
Outcome
Pleaded guilty to two murders and sentenced in 1995 to two consecutive life terms; denied parole in 2019

The case

Theresa Knorr was a mother of six in Sacramento, California. By the early 1980s she and her children were living in a cramped apartment on Auburn Boulevard, where she beat them, starved them and made them punish one another. Her anger came to focus on her two oldest daughters, Sheila and Suesan, whom she accused of using witchcraft to steal her youth and looks.

In 1983 Knorr shot Suesan during an argument, and the bullet stayed lodged in the girl’s back. In July 1984 she had one of her sons cut it out at home. Suesan, seventeen, slipped into a coma, and her brothers were made to carry her to the car and drive her into the mountains off Highway 89 near Squaw Valley, where their mother set her on fire while she was still alive. In June 1985 Sheila, twenty, died after her mother kept her locked in a tiny closet for days without food. Her body was left in a cardboard box near Truckee.

For years both women were listed as unidentified. In October 1993, surviving daughter Terry called the America’s Most Wanted tip line and then told Placer County investigators what had happened. Knorr was arrested in Salt Lake City on November 10, 1993, living under her maiden name. She pleaded guilty to two counts of murder and in 1995 received two consecutive life sentences. A parole board turned her down in 2019.

Case photographs

Sheila Sanders
Sheila Sanders
Suesan Knorr
Suesan Knorr
Theresa Knorr
Theresa Knorr
Composite drawing of Suesan Knorr
Composite drawing of Suesan Knorr
Robert Knorr Jr.
Robert Knorr Jr.
William Knorr
William Knorr
Theresa Knorr
Theresa Knorr
at time of arrest & more recent photo.
at time of arrest & more recent photo.
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom
Worlds Worst Mom

Where it happened

Auburn Boulevard, Sacramento, where the Knorr family lived

Jason Neal has been writing true crime since 2019 and is the author of the True Crime Case Histories book series.

The full written account of this case is in True Crime Case Histories: Volume 9: Book · Paperback · Audiobook

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