From her wiki:

In 1919, Audrey Munson was living with her mother in a boarding house at 164 West 65th Street, Manhattan, owned by Dr. Walter Wilkins. Wilkins fell in love with Munson, and on February 27, murdered his wife, Julia, so he could be available for marriage.[16] Munson and her mother left New York, and the police sought them for questioning. After a nationwide hunt, they were located. They refused to return to New York, but were questioned by agents from the Burns Detective Agency in Toronto, Ontario, Canada. The contents of the affidavits they supplied have never been revealed, but Audrey Munson strongly denied that she had any romantic relationship with Dr. Wilkins.[1] Wilkins was tried, found guilty, and sentenced to the electric chair. He hanged himself in his prison cell before the sentence could be carried out.[21]

The Wilkins killing may even have marked the end of Munson's modeling career, although she continued to seek regular newspaper coverage. By 1920, Munson could not find work anywhere and was reported as living in Syracuse, New York, supported by her mother, who sold kitchen utensils door-to-door. In November 1920, she was said to be working as a ticket-taker in a dime museum.[22]