FILE 686 / 27 March 2026 / 74 MIN / express

Serial Killer Motives

Fond du Lac, WisconsinListen

The town

N ↑Public placePublic placePublic placePublic placeTown centre (approximate places)
Static locations; no street basemap. Places and details. OpenFreeMap © OpenMapTiles Data from OpenStreetMap.

We are going to Wisconsin today, we're going to Fond du Lac, Wisconsin, in southeastern Wisconsin, in Fond du Lac County about 0:03:06

History, in brief

Town note

Fond du Lac is French for bottom of the lake, named for its location at the south end of Lake Winnebago.

about 0:06:06

1836

In 1836 a man tried to make Fond du Lac the capital of Wisconsin; Madison was picked instead.

about 0:06:35

1944

From June to August 1944 the Fond du Lac County fairgrounds held a prisoner of war camp with 300 German POWs, who worked on pea farms and in canneries that summer.

about 0:06:45

Town note

Don Gorski, from Fond du Lac, is the Guinness record holder for the most Big Macs eaten and appeared in the Super Size Me documentary.

about 0:07:12
All 4 history facts

Town note

Fond du Lac is French for bottom of the lake, named for its location at the south end of Lake Winnebago.

about 0:06:06

1836

In 1836 a man tried to make Fond du Lac the capital of Wisconsin; Madison was picked instead.

about 0:06:35

1944

From June to August 1944 the Fond du Lac County fairgrounds held a prisoner of war camp with 300 German POWs, who worked on pea farms and in canneries that summer.

about 0:06:45

Town note

Don Gorski, from Fond du Lac, is the Guinness record holder for the most Big Macs eaten and appeared in the Super Size Me documentary.

about 0:07:12

The figures, as told

Money

Median home value$176,200
Median household income$56,561
All figures and comparisons, as told in 2026

Population

"44,412"

No direction stated.

As told in 2026 about 0:05:16

Median household income

"$56,561"

Comparison: "about $12,000 below the national average". Direction: below.

As told in 2026 about 0:05:31

Median home cost

"$176,200"

Comparison: "about half the national average". Direction: below.

As told in 2026 about 0:05:41

The reviews

2.8 / 5 · average of 4

5 stars

“A very good town where people know everyone and there is not a lot of crime compared to other places.”
about 0:08:01

3 stars

“Lived there all his life with a love-hate relationship; being in the middle means everything is within ten minutes, but the community is not the greatest with lots of violence and crime.”
about 0:08:36

2 stars

“Heard about crimes but never experienced much; was followed by a car while walking the dog at night, once saw a man sitting in his car with a knife, the lighting at night is awful and crime and heroin use are rising.”
about 0:09:05

1 star

“The worst place he has ever lived, the armpit of Wisconsin and a dump, and he is shocked by the good reviews.”
about 0:09:53

In Wisconsin

Closest episodes

  1. Murder Shoes & FabulationGrafton, Wisconsin · 6 May 202164 km / 40 miShow on map
  2. Too Gruesome To SolveColumbus, Wisconsin · 21 July 202268 km / 42 miShow on map
  3. Don't Look In The StoveOconomowoc, Wisconsin · 10 December 202275 km / 47 miShow on map
  4. Murder MartiniPewaukee, Wisconsin · 13 February 202580 km / 50 miShow on map
  5. The Unraveling Of A PsychopathWindsor, Wisconsin · 28 October 202390 km / 56 miShow on map

The story

In the summer of 1990 Barrett Lynn Beck, an eighteen-year-old from Sturtevant in Racine County, Wisconsin, was starting a new job as a secretary at Bolt Construction in Appleton. On July 17 she set off north from her family home in the two-tone grey GMC conversion van she drove, with her father Dave watching her go. She told him not to worry, that all the people up north were good people.

She drove north on U.S. Highway 41. Fond du Lac sits about halfway to Appleton, so she stopped at the Forest Mall at the junction with Wisconsin Highway 23. At 11.04 she bought a Jolen hair-bleaching kit at the Walgreens inside the mall, planning to bleach her hair before the seminar. She walked back to the van and was never seen alive again. There were no security cameras outside and no witnesses.

Two days later, on July 19, the van was found locked in the Kmart car park across from the mall. Her keys were gone. Inside, police found a red T-shirt with a clean strip cut out of the back, the bleach kit still in its bag, a Burger King cup carrying two sets of fingerprints, a cellophane cigarette wrapper under the passenger seat, large piles of cigarette ash, condoms, a strip of nylon cut from pantyhose, her employment manual and an empty McDonald's bag with a Racine receipt from earlier that morning. Beck did not smoke, and her only food receipt was from McDonald's. Most telling was the odometer: she had noted her mileage for the trip, and the van had covered 462 miles more than it should have. The sheriff called it a bold stranger abduction.

On August 22 a man named Michael Plum was walking along Brown Road in the town of Waupun, in Fond du Lac County, about 18 miles from the mall, when he saw blond hair in a clump of tall weeds along a drainage ditch. It was Beck, five weeks in the summer heat and identifiable only by dental records. The autopsy found strangulation and suffocation. The cut-out red cloth had been used as a blindfold, cut away while she was wearing the shirt, and the nylon had been used to bind her.

DNA technology was in its infancy and there was no fingerprint database, so the case stalled. He had been active in car thefts and robberies in the area that June and July, and a hairbrush with blond hairs was found among his things. A farmer identified Beck's van near Kewaskum on July 17 with a man matching his description hiding his face. His girlfriend Jeanette Mikkelson told investigators he had been on a 'suicide run', capable of anything, and that he told her on July 18, 'It's all over with now. I did it.' In 1991 detectives obtained a search warrant declaring him 'more than likely involved'.

Between 2004 and 2013 the torn red shirt and the nylon binding disappeared from the sheriff's evidence lockers, with no explanation beyond staff misplacing or discarding them. The case was reopened in 2013, the subject of a USA Today network Wisconsin investigation. Born in 1954, he was a long-haul trucker since 1979 and a welder at a Kenosha plant, and his routes ran through the Highway 26 and 151 junction beside Brown Road. He was a heavy smoker. In 1989 he had taken a Cadillac in Green Lake and put more than 900 miles on it, leaving piles of ash.

Police interviewed him in Kenosha on March 28, 2014. He denied ever eating at Burger King, though an ex-wife said it was his favourite, and said he did not remember how he got in the van. Former co-workers came forward to say he kept photographs of young girls in his toolbox, one of them a blond teenager they were 90 per cent sure was Beck. He had no daughters.

The defence attacked the chain of custody, noted an unidentified print on the steering column and male DNA on a toothpick that matched nobody, and argued that fingerprints prove presence, not murder.

Beck's family set up a memorial scholarship for music students.

The case

Murder of Barrett Beck

Victims

Barrett Lynn Beck (18). Born in 1972, grew up in Sturtevant, Racine County; a secretary newly hired by Bolt Construction and driving to a three-day orientation in Appleton; played several instruments and had toured with the Continental Singers.

Accused and outcomes

As told in the episode, on 27 March 2026.

Accused

Outcome

Other people

Jeanette Mikkelson. Psycho's live-in girlfriend, whose statements to investigators put him in Fond du Lac the week of the abduction
Tammy Jolly. Psycho's ex-girlfriend, stabbed in a Walmart parking lot in West Bend in 2002
Terry Kazinsky. former girlfriend who lived with for a year in the late 1990s and said he choked her during a 1998 break-up
Michael Plum. man who found Beck's body along Brown Road
Gary Plank. FBI profiler who said investigators focused on the wrong motive
Jim Gilmore. Fond du Lac County sheriff
Dave Beck. Barrett's father, who saw her off on the morning she left
Diane Beck. Barrett's mother
Ben Beck. Barrett's brother

The timeline

  1. 1954 is born; he grows up in Mondovi in western Wisconsin.about 0:47:46
  2. 1972 Barrett Lynn Beck is born.about 0:14:15
  3. 1979 begins work as a long-haul truck driver.about 0:48:17
  4. 1989 takes a Cadillac in Green Lake without the owner's consent and puts more than 900 miles on it before returning it, leaving piles of ash everywhere.about 0:51:22
  5. July 17, 1990 Beck leaves her family home in Sturtevant in a two-tone grey GMC conversion van, driving north on U.S. Highway 41 for the orientation at Bolt Construction in Appleton. (Beck family home)about 0:17:35
  6. July 17, 1990, about 11 a.m. She stops at the Forest Mall and buys a Jolen hair-bleaching kit at Walgreens; the receipt is stamped 11.04. (Walgreens)about 0:21:01
  7. July 17, 1990 Beck walks back to the van and is never seen alive again; there are no security cameras outside and no witnesses. (Forest Mall)about 0:21:19
  8. July 18, 1990 Witnesses say the van was already parked in the Kmart lot the previous evening. (Kmart parking lot)about 0:22:25
  9. July 19, 1990 The van is found locked in the Kmart parking lot across from the Forest Mall; the keys are missing. (Kmart parking lot)about 0:21:59

Places and phrases

N ↑Public placePublic placePublic placePublic placeTown centre (approximate places)
Static locations; no street basemap. Places and details. OpenFreeMap © OpenMapTiles Data from OpenStreetMap.

Places in the story

Public places are marked on the map.

Heard in this episode