Wendy Lynn Khan was a caring, loving mother to her daughter Aneisah Khan, who was 21 years old at the time of Wendy's disappearance. Wendy adored both of her two cats she had for several years. Khan was a 1989 graduate of Mankato East High School and worked at Elm Homes, caring for residents with disabilities. She also had a seven-year on-and-off relationship with her boyfriend, Mohammed Bilal Chughtai. During their relationship, Wendy Khan resided in Iowa, Pennsylvania, and Shakopee, Minnesota. In December 2017, Wendy Khan moved from Pennsylvania to Mankato, where she lived with Mohammed.

The day before Wendy Lynn Khan's disappearance on May 31, 2018, she went to her daughter Aneisah Khan doctors appointment and ran some errands with her. Wendy took her daughter Aneisah back to her home, where she lived with her boyfriend, Mohammad Bilal Chughtai. Wendy had spoken to her daughter about ending her relationship with Mohammad and wanted to look for apartments online that day.

The relationship between Mohammad and Aneisah was not great due to past arguments. Because of this, Mohammad demanded Wendy's daughter to leave or else he would call the police. Wendy gave her daughter a ride back home to her apartment, which would be the last day she would see her mother again. However, on June 1, 2018, Aneisah and Wendy exchanged text messages. Aneisah asked her mom if she wanted to spend time together, but Wendy declined and told her daughter to hang out with her friends because Aneisah had plans later with them. That was the last time of contact.

On June 2, 2018, Aneisah tried to contact her by phone, but she never answered. Aneisah was concerned about her mom; she went to the house, and no one was home nor Wendy's vehicle.

On Sunday, June 3, 2018, Aneisah, went to the police station in Makato to file a missing person report. four days later, police located Khan's 2011 black Nissan Sentra vehicle behind a CVS parking lot in Mankato. Authorities said that Wendy left with her purse and cell phone but had not found the items. Wendy's phone was last used on June 2, 2018, and no activity from her bank accounts since May 31, 2018. Police discovered that the vehicle had a flat tire on the front passenger side due to a puncture with a blade. Authorities had searched Mohammed's car and the home where both Wendy and himself lived, and no evidence came up of foul play.

The Mankato Department of Public Safety has not named any persons of interest or suspects in Wendy's case. The case is still an active missing person case. A month after Wendy's disappearance, Mohammed sold their home in July 2018 and has not been seen again, and he is not a reported missing person. Mohammed Bilal Chughtai, a Pakistani immigrant who moved to the United States in the 1980s, Chugtai has misdemeanor convictions for domestic assault, stalking, and violating a restraining order from his previous relationship with the mother of his children. Chughtai currently has an active warrant for his arrest in Blue Earth County, Minnesota, for failing to appear in court in connection with a stalking charge.