Formal criminal charges have been filed against Adam Taylor Fravel, the ex-boyfriend of a missing Winona woman who was found dead earlier this week. The documents reveal new details and allege prolonged abuse by Fravel, 29, including an obsession with a previous murder case that gained national attention.

According to the documents, on March 31 around 8:20 p.m., Winona police were contacted by a person who identified herself as a friend of Madeline Kingsbury, 26, and said she was concerned for Madeline’s health and safety. According to the friend, Madeline had not attempted to contact her throughout the day, which was unusual. The friend was concerned and had gone to Madeline’s residence, saw her minivan in the driveway and knocked on the door, receiving no response from inside.

The friend also told police that she was aware that Madeline was having issues with her significant other, who also lived at the residence. The friend identified the significant other as Adam Fravel.

Winona police officers spoke with the witness at Madeline’s residence in Winona and an officer knocked on the door, looked in the windows and did not see anyone inside. Officers spoke with Madeline’s father on the phone and learned that her family had also not had contact with her that day, which was out of the ordinary.

A Winona police officer spoke with Fravel by phone shortly after, who said he hadn’t heard from Madeline since early in the morning and that she was supposed to pick up their children at their Winona daycare after she finished working.

Fravel said Madeline didn’t pick up the kids that morning, so he did, and took them to his parents’ residence in Mabel, Minn. Later that evening, officers conducted a welfare check inside the Winona residence and found that no one was inside.