206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Description
See any errors? Let us know!Constance Margaret Fisher: A Tragic Tale of Mental Illness and Murder
Early Life
Constance Margaret Sirois was born on March 26, 1929, in Oakland, Maine. She was abandoned by her birth parents and later adopted by the Sirois family. In 1946, at the age of 17, she married Carl Marion Fisher, a WWII veteran. The couple had three children: Richard, Daniel, and Deborah Kay.First Incident: March 8, 1954
On March 8, 1954, Constance Fisher drowned her three children in the bathtub of their home in Waterville, Maine. Her husband, Carl, returned home to find the door locked and contacted Dr. Richard Chasse, who had been treating Constance for depression. They broke down the door and discovered the bodies of the children.- Richard Fisher, aged 6, found drowned in the bathtub
- Daniel Fisher, aged 4, found in bed
- Deborah Kay Fisher, aged 1, found in bed
Second Incident: June 30, 1966
After being released from the hospital in 1959, Constance Fisher returned home. However, on June 30, 1966, she repeated the horrific act, drowning three more of her children in the bathtub of their home in Fairfield Center, Maine.- Kathleen Fisher, aged 6, found drowned in the bathtub
- Michael Fisher, aged 4, found drowned in the bathtub
- Nathalie Fisher, aged 9 months, found drowned in the bathtub
Victims
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Confirmed Victims: (6)
Richard Fisher Age: (6), Date of Death: 1954-03-08 ...View 5 additional victims
Links to Additional Sources (13)
See any mistakes? Let us know!Killer's Details
Constance Margaret
Fisher
March 26, 1929 Oakland, Maine, United States
October 1, 1973 (aged 44) Kennebec River, near Gardiner, Maine, United States
Female
White
Not guilty by reason of insanity
Involuntary commitment
6
1954 - 1966
Maine
July 1, 1966 (Last time)
Augusta State Hospital
07/03/2025









