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Murder of Margaret Anderson

SOLVED2007Green Bay, Wisconsin3 SOURCESUPDATED JUL 2026
Illustrative

Overview

On the night of December 26, 1983, Margaret Anderson (born October 6, 1948) was killed in Green Bay, Wisconsin, following a night that began with drinks and a movie with an acquaintance, Terry "Weasel" Apfel, a member of the local Drifters motorcycle club. The two later went to the Back Forty, a bar owned by Mark "Shotgun" Lukensmeyer, also a Drifter, where members of the Drifters and a rival club, the DC Eagles, had spent the evening drinking heavily and using drugs.

The Attack

After an altercation between Anderson and another woman inside the bar, Anderson and Apfel left. Outside, an argument between Anderson and Apfel escalated; Apfel assaulted Anderson and then pushed her toward three members of the DC Eagles — Randolph "Gargoyle" Whiting, Denice "Bobber" Stumpner, and Mark "A.D." Hinton — before leaving the scene. The three men began beating Anderson while Lukensmeyer watched from the bar's doorway before joining in. The bartender, who attempted to intervene, was unable to stop the assault and left the scene. The four men brought Anderson inside the bar, where for roughly two hours they subjected her to further beatings and sexual assault, including an assault with a broken cue stick and a cue ball. Anderson fought back at one point, cutting Stumpner with a knife, which resulted in further violence against her.

The men then drove Anderson to the Packerland Meat Packing Plant, where Whiting pulled her from the vehicle by her hair, dragged her through snow, and cut her throat with a knife. She died at the scene in the early hours of December 27, 1983.

Investigation and Convictions

The case remained unsolved for years before being closed through the work of the Green Bay Police Department, other law enforcement jurisdictions, and a broadcast on the television program America's Most Wanted. Randolph Whiting evaded capture for eight months and was located on March 21, 1985; he was charged with and convicted of first-degree murder, receiving a life sentence, and was the only one of the four convicted specifically of the killing. Mark Lukensmeyer was convicted and sentenced to fifty years for aiding and abetting aggravated assault, kidnapping, and first-degree sexual assault. Mark Hinton also received a fifty-year sentence. Denice Stumpner evaded identification for four and a half years until his location was determined within three days of his broadcast on America's Most Wanted; he too received a fifty-year sentence.

Aftermath

Under sentencing rules in place at the time, the fifty-year sentences carried mandatory release after 22 years. Hinton was released under supervision in summer 2007, Lukensmeyer in spring 2008, and Stumpner's release date was set for January 20, 2011. Whiting, convicted of the murder itself, was paroled in 2020.

Key facts

Victims
Margaret Anderson
Date
2007
Location
Green Bay, Wisconsin
Case status
solved

Case timeline

  1. 1948-10-06

    Margaret Anderson is born.

  2. 1983-12-26

    Margaret Anderson spends the evening with Terry Apfel, later going to the Back Forty bar in Green Bay, Wisconsin.

  3. 1983-12-27

    Anderson is killed at the Packerland Meat Packing Plant after hours of beating and sexual assault; she dies around 3 a.m.

  4. 1985-03-21

    Randolph Whiting, who had evaded capture for eight months, is located and charged with first-degree murder.

  5. 2007

    Mark Hinton is released under supervision after serving the mandatory 22 years of his 50-year sentence.

  6. 2008

    Mark Lukensmeyer is released under supervision after serving the mandatory 22 years of his 50-year sentence.

  7. 2011-01-20

    Denice Stumpner's mandatory release date with supervision.

  8. 2020

    Randolph Whiting is paroled.

Best coverage

No approved coverage links are attached yet.

People

  • Randolph Whiting

    CONVICTED

    Convicted of first-degree murder for killing Margaret Anderson; sentenced to life; paroled in 2020.

  • Mark Lukensmeyer

    CONVICTED

    Convicted of aiding and abetting aggravated assault, kidnapping, and first-degree sexual assault; sentenced to 50 years; released 2008.

  • Denice Stumpner

    CONVICTED

    Located via America's Most Wanted broadcast; convicted and sentenced to 50 years; mandatory release date January 20, 2011.

  • Margaret Anderson

    VICTIM

    Beaten, tortured, raped, and killed on December 26–27, 1983, in Green Bay, Wisconsin.

  • Mark Hinton

    CONVICTED

    Convicted and sentenced to 50 years for his role in the assault; released 2007.

Roles reflect public records and court outcomes at the time of writing — supporting citations are on file under Sources.

Places

Common questions

What happened to the victim?
On December 26, 1983, Margaret Anderson was beaten, tortured, raped, and killed by four members of two rival biker gangs at the Back Forty bar in Green Bay, Wisconsin, and then at a nearby meat packing plant. The case took four years to solve, with the final suspect located after a broadcast on America's Most Wanted.
Where did the murder happen?
Green Bay, Wisconsin.
Who was convicted?
Randolph Whiting (Convicted of first-degree murder for killing Margaret Anderson; sentenced to life; paroled in 2020.), Mark Lukensmeyer (Convicted of aiding and abetting aggravated assault, kidnapping, and first-degree sexual assault; sentenced to 50 years; released 2008.), Denice Stumpner (Located via America's Most Wanted broadcast; convicted and sentenced to 50 years; mandatory release date January 20, 2011.), and Mark Hinton (Convicted and sentenced to 50 years for his role in the assault; released 2007.).
What is the current status of the case?
Status: solved.

Sources

  1. ENCYCLOPEDICMurder of Margaret AndersonWikipedia · 2026-07-07
  2. PRESSContemporaneous coverage — wisconsinrightnow.comwisconsinrightnow.com · 2026-07-07
  3. PRESSContemporaneous coverage — wbay.comwbay.com · 2026-07-07

Record history

First published
JUL 07, 2026