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Missouri Mom, Daughter Allegedly Poisoned, Murdered Two Relatives, Tried To Kill Third

Categories: Crime, News

diane-staudte.jpg
Diane Staudte.
A Springfield mother has been charged with first-degree murder in the death of her husband and son in an unbelievable case in which prosecutors say the woman successfully poisoned the two with anti-freeze. These criminal acts came to light when officials learned that the mother, 51-year-old Diane Staudte, had also tried to murder one of her daughters, Sarah, 24, police say.

If those charges weren't incredible enough, police say that another one of Staudte's daughters, 22-year-old Rachel, plotted the crimes alongside her mom. Both Springfield women have now been charged and are behind bars without bond.

The probable cause statements, on view below, offer a detailed look at some of the disturbing comments the mother allegedly made about why she wanted to murder three members of her immediate family -- and how she carefully researched and executed the plan with the help of her child.

See also:
- O'Fallon Mom, Encouraged Boyfriend To Rape Her Infant Daughter: Cops
- Missouri Couple Accused Of Plotting Infant's Rape: Bizarre Public Facebook Posts
- Tessa Vanvlerah: Life Sentence for Allowing Man to Have Sex with Infant Daughter

Both women are charged in the deaths of Mark Staudte, 61, and Shawn Staudte, 26. The father died in April of 2012 and the son in September later that year and police originally believed the deaths were not suspicious.

This month, however, cops managed to uncover a disturbing murder plot, apparently in part because of the mother's suspicious behavior at the hospital, where her daughter Sarah was sick. An anonymous tip also helped police get to the bottom of the deaths.

rachel-Staudte.jpg
Rachel Staudte.

That anonymous caller reportedly told cops that Diane Staudte was "possibly responsible for two or three homicides," in reference to the deaths of Mark and Shawn and the hospitalization of Sarah.

On June 13, nurses told police that Sarah's condition "was serious and potentially fatal," with nearly lethal pH levels. She was unresponsive but medical officials did not at first know what was wrong with her.

The probable cause statement has this summary written by an officer of the mother's behavior at the hospital, from a nurse's testimony:

She told me Sarah's mother (Diane) had been a couple times, but said she had not stayed long.... The nurse described Diane's actions as "inappropriate."... She told me Diane did not act how a mother should act. She said Diane was aware Sarah's condition was life threatening, but said Diane made jokes and laughed with hospital personnel. The nurse said Diane did not seem concerned about Sarah. She said Diane told her she had a Florida vacation planned in the upcoming week. Diane told her she was still planning to take the vacation, no matter the status of Sarah.

Doctors soon realized that Sarah may have been poisoned.

This led police to question the mother about her husband's death a year prior. Originally, medical examiners ruled Mark's death as a result of "natural causes" and Shawn's death as a result of "prior medical issues."

diane-s-fb-photo.jpg
via Facebook
Diane Staudte.

Questioned on Thursday, Diane denied any involvement in their deaths or Sarah's sickness, but during the course of the interview, "she began to change her story," police say. "Eventually, she admitted that she used anti-freeze to poison them all."

rachel-s-fb-charge.jpg
via Facebook
Rachel Staudte.

She allegedly told cops that she researched the use of anti-freeze as a poison on the internet. "She admitted that she poisoned Mark over a three day period. Diane said she put the anti-freeze in his Gatorade."

Why? The report has these details about her alleged motives against all three victims:

She stated she killed Mark because she hated him. Diane admitted that she poisoned Shawn over a two day period. She said she put the anti-freeze in his Cokes. Diane told me she killed Shawn because he was worse than a pest. Diane also admitted to poisoning Sarah, which she said was over a four day period. Diane told me she put the anti-freeze in Sarah's Cokes. She stated she wanted to kill Sarah because she would not get a job and had student loans that hat to be paid.

The mother initially told police that no one else was involved and "it was all her 'evil.'"

But cops on Friday questioned Rachel, who at first denied any involvement in the case, but when confronted with evidence, admitted that she was involved in the deaths of her father and brother -- and attempted assault on her older sister, Sarah, police say.

Continue for the full charges and comments from the mother's Facebook, including a post right after her husband died.


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18 comments
Brian Zimmer
Brian Zimmer

Why the continued course down the path of the National Enquirer, RFT? Sick of this shit.

Jesse Speaks Jr
Jesse Speaks Jr

Her pic is a lil' scary, she's all got that Lee Harvey Oswald look in her eyes.

Jesse Speaks Jr
Jesse Speaks Jr

If she's found guilty, I'm glad we have places for people like her!!!!

Lauri Judson
Lauri Judson

Holy cow!!! A lot of sick people in this world...in this state!!!!!!!!

Brian Blood
Brian Blood

Her new name rhymes with "Bunt" and starts with a "C".

Ryan Mackley
Ryan Mackley

Now we have to ban antifreeze and assault weapons.

Angie Michael
Angie Michael

Flush it all away.....imagine the world has to get even more sick before we get a break

Dave Brown
Dave Brown

Sounds like the son had it coming

Sara Ivie-Trankler
Sara Ivie-Trankler

We have had one screwed up month of psycho moms. The chick that planned her baby's rape is still giving me nightmares.

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