Indiana man tried to kill his wife by poisoning her with cocaine and MDMA so he could marry their daughter

An Indiana man has admitted he tried to kill his wife by poisoning her Coca-Cola with cocaine, MDMA and benzodiazepines so he could marry their daughter, authorities said.

Alfred W. Ruf, 71, admitted to spiking his wife's drink about a dozen times in Richmond in late 2021 as part of a perverse plan to run away with his stepdaughter, Fox 59 reported.

Ruf, who pleaded guilty in Wayne County District Court on Monday, told detectives that his stepdaughter and one of her friends allegedly convinced him to carry out the plot and provided him with the drugs to put in his wife's drinks.

He claimed his wife's daughter wanted to “get her mother out of the way” so they could cash in her life insurance policy and promised to marry him after they “took care of the woman,” court documents show.

The husband admitted to poisoning his wife's drink about twelve times between September and December 2021.

“Ruf stated that he knew the substance would ultimately kill his wife … and that it [the] “His ultimate goal was to kill her,” court documents say.

Each time, the woman was unconscious for about 13 hours due to the mixture of substances, court documents say.

Ruf explained to police that his stepdaughter and her friend allegedly came to the woman's house to have sex with him while she was under the influence of drugs.

He was finally caught after the woman contacted police in early 2022 and said she had been hospitalized six times in a matter of weeks and tested positive for drugs she had not taken.

She had gone to the hospital after suffering from unexplained headaches, drowsiness, diarrhea and other symptoms.

Subsequent tests showed traces of cocaine, MDMA and antidepressants in her body.

She was able to show the police one of the Coke cans she had drunk from, which had traces of a cream-colored residue inside.

When police arrested Ruf, they reportedly investigated allegations made against the stepdaughter and her friend, but no arrests were made.

Meanwhile, Ruf was sentenced to four years in prison on Monday after pleading guilty to grievous bodily harm endangering life.

The charge of conspiracy to commit murder was dropped as part of the deal.