Joshua Guimond (born June 18, 1982) is an American man who disappeared on the night of November 9 and 10, 2002, after leaving a party hosted in a dormitory of Saint John's University in Collegeville, Minnesota.

He was a 20-year-old junior student at Saint John's, who was partying with friends in the campus' Metten Court dormitory building.

[7][8] Leading up to November 2002, in the area around the Saint John's campus, male college students had been the subject of attacks, including attempted abductions and stalkings.

[6] At 11:06 pm,[13] he left and walked north with his friends to go to a party in an apartment of the Metten Court dormitory building.

[7] He was last seen wearing blue jeans and a gray Saint John's sweatshirt,[19] which was not appropriate clothing for spending a long amount of time in the snow.

[9] Fifteen minutes after he left, Guimond's friends attempted to call him at his dorm's phone, but received no answer.

[6] On the afternoon of the 10th, he failed to show up for a mock trial debate hosted by the school's Pre-Law Society, which is when his friends started worrying about him.

Guimond's friends started an information campaign to spread awareness, including posters that were put up in an area from Fargo to the Twin Cities.

[27] For some time afterwards, a sign at an entrance to the campus had Guimond's picture and phone numbers leading to information about his disappearance.

[6][22] The Sheriff's Office, Federal Bureau of Investigation, Minnesota National Guard, Minnesota Bureau of Criminal Apprehension (BCA), Maple Lake Fire Department, and local volunteers helped in the investigation in different ways, including searching the campus premises.

One dog used within days of the disappearance, trained for this type of search, tracked Guimond's scent to Stumpf Lake and the nearby bridge.

[7] The "Find Joshua Fund" and Brian Guimond lobbied The Trident Foundation – considered the U.S.' "premier water-based crimes investigative organization" – to help search the three lakes on campus.

[33][25] In 2004, Brian Guimond went to an employee of the Minnesota Soil and Water Conservation District, Bradley Wenz, and proposed the theory that Joshua was at the bottom of a lake.

[17] Soyka ruled out the theory that Joshua had drowned by 2022;[4] despite this, as recently as around 2023, Collegeville's surrounding lakes and river were searched by police and citizens.

[16] From the start of the case, Guimond's parents believed he was taken and that someone on campus had relevant information, which the police denied suspecting.

[7][15][16] In 2003, Stearns County Sheriff John Sanner said that Guimond was considered a missing person, but that there was no evidence of foul play.

[17][37] In 2003, Brian Guimond cited as evidence of malicious intent the disappearance of Jacob Wetterling in 1989 – also in Stearns County – and the scandal regarding sexual abuse by monks living at Saint John's Abbey, a monastery connected to the campus.

[6] Christopher Jenkins, a University of Minnesota student, disappeared after leaving a bar in Minneapolis on November 1, and Michael Noll, a University of Wisconsin Eau-Claire student, disappeared on November 6 after visiting a bar in Eau Claire, Wisconsin.

[40] The discovery of the bodies gave credence to a theory that Guimond was pushed into a lake, and that possibly all three deaths had been the work of a serial killer.

[4][9] In 2022, an investigator said the "most likely avenue or theory" regarding the case was that Guimond met someone from a dating site who was responsible for him disappearing.

[34] The theory could be supported by an incident from around the time of the disappearance, when there were two reports of a man driving an orange Pontiac Sunfire on campus, dropping off other men.

[19] In December 2021, Brian Guimond sued the Stearns County Sheriff's Office in an attempt to gain access to Joshua's case file.

[6][32] In 2022, before the case's 20th anniversary, it gained renewed interest due to its coverage in an episode of the Netflix series Unsolved Mysteries, and a podcast on the disappearance, Simply Vanished.

[10][48] The Stearns County Sheriff's Office participated in the making of the Unsolved Mysteries episode, which brought in a wealth of new tips.

[49][50][51] Simply Vanished was created by a local attorney who felt the case investigators spent too much time focusing on theory that Guimond was in a lake.