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Crystal Ann Arensdorf, 21, of Dubuque, Iowa, was last seen at approximately 2 a.m. on July 4, 2001, at Knicker’s Saloon in Dubuque, Iowa. Arensdorf had gone to the 2186 Central Avenue bar with friends and tried to find a ride to East Dubuque, Ill.
No one saw her leave the bar, and she left her car, her keys, and her money behind. She did not show up for work Thursday morning.
Steven and David Peacock — two former Dubuque brothers who resided in Mount Horeb, Wisconsin — were at the bar on July 4 and questioned several times in Arensdorf’s disappearance.
The brothers agreed to polygraph exams in April 2002, and authorities also seized and searched David Peacock’s vehicle.
The brothers were never charged in connection with Arensdorf’s case.
In June 2015, Iowa Cold Cases received a tip saying David Peacock hadn’t used his own vehicle the night Arensdorf went missing, but had instead borrowed his sister’s pick-up truck.
The tipster also provided the current aliases used by the brothers, the names of their respective employers, and identified the location where the brothers allegedly buried Arensdorf’s body.
Iowa Cold Cases forwarded the information to Dubuque Police Department investigators.
Robert F. Mootz, the Knicker’s Saloon bartender in 2001, pled guilty in May 2002 to serving alcohol to a minor.
Mootz told authorities he and Arensdorf planned to share a cab to East Dubuque after her friends departed from the bar. The plans apparently changed during the evening and Arensdorf did not leave with Mootz. He has not been charged in connection with her disappearance.
Arensdorf’s family members said it was uncharacteristic of Crystal to leave without warning, and offered a $2,500 reward for information leading to her whereabouts.
Officials have classified Arensdorf’s disappearance as “Endangered / Physical,” which refers to a person of any age who is missing under circumstances indicating his/her physical safety is in danger.
At the time of her disappearance, Crystal was described as a 5-foot-6 white female weighing 115 pounds, with blonde hair and brown eyes.
She was last seen wearing blue-tinted soft contact lenses, a white polo T-shirt, tan shorts, black sandals, a gold chain necklace with an opal pendant, an opal ring and a toe ring. She has a mole near her naval and her ears are double-pierced.
Twelve days after Arensdorf vanished, authorities searched Leisure Lake in Jackson County, Iowa, after a witness reported seeing a body floating in the water. The sighting turned out to be a false alarm and officials found no evidence at the scene.
In October 2001 — three months after she went missing — investigators eliminated Arensdorf’s boyfriend, Tim Gerlieb, as a possible suspect in her disappearance.
Dubuque police followed up on more than 500 leads, but have made no arrests in what they still consider a missing person case with a “high suspicion” of being criminal in nature. They do not believe she left of her own accord.
KCRG TV-9 spoke exclusively with Arensdorf’s family in multiple segments airing in June 2011. After viewing the newscasts (see below) an anonymous Dubuque business owner offered to put up $10,000 toward a reward for information leading to an arrest in the case.
The reward has thus far gone unclaimed, and Crystal Arensdorf’s mysterious disappearance remains unsolved.
A DNA sample has been submitted and tests are complete.
If you have any information about Crystal Arensdorf’s disappearance please contact Investigator Dave Randall at (563) 589-4429, Investigator Nick Schlosser at (563) 587-3813, or Lt. Scott Baxter at (563) 589-4410.
10 Years Later: Police and Family Continue Search for Crystal Arensdorf
KCRG-TV News Channel 9, Cedar Rapids, June 29, 2011
KCRG’s full interview with Crystal’s mom, Barb Beam
June 29, 2011
KCRG’s full interview with Crystal’s sister, Jen Puetsch
June 29, 2011