Photos: Ten More Unsolved Colorado Murders and Personal Stories of Victims

Over the years, we've intermittently highlighted unsolved Colorado homicides listed on the Families of Homicide Victims and Missing Persons website -- including the rape and murder of Jacqueline Gallegos, whose alleged killer, Andre Jackson, was just convicted. Unfortunately, however, there's no shortage of people who have not yet been punished after committing society's most heinous crime, including the suspected murderer of nine-year-old Sarah Skiba, seen here.

Continue to learn about ten more mysteries, featuring photos and personal stories of the victims as featured on the FOHVAMP site, and click on victim names for more details, including law-enforcement contact info if you can help finally bring their killers to justice.

See also: Andre Jackson Found Guilty in Brutal Cold Case Rape and Murder

Mary Lou Vickerman Mary Lou Victkerman was born Dec. 20, 1937, in New Orleans. She graduated from high school in Niles, Mich., and nursing school in Battle Creek, Mich. She was a licensed practical nurse for many years.

Mary Lou previously lived in Wisconsin and moved to Loveland in 1990. She was a member of the First Christian Church. She held many offices with different organizations, including Beginning Experiences, both in Wisconsin and in Loveland. She volunteered in various organizations in Wisconsin and Loveland and was involved in the local United Way.

She enjoyed being with her grandchildren and liked to cook, especially for the holidays, and entertaining. She always prepared something special for potluck dinners. She also enjoyed doing crafts.

On Sept 13, 1999 Mary Lou was sitting on her bicycle waiting to cross US 287 at the entrance to Orchards Shopping Center in Loveland when a 1970s model red Ford pickup with a white camper shell turned out of the shopping center, slammed into Mary Lou Vickerman who died of head trauma. Driver of the pickup did not stop. He was described as a white male in his late 30s or early 40s. If you have information related to this case please contac Sgt. Higney at the Loveland Police Department, (970) 667-2151.

Michael Nigg Michael Nigg, 26, was born in Gunnison and attended Western State College. Nature was an important part of his life. He liked skiing and played soccer from age 6 to 18. His favorite retreat was in the mountains. Michael was always available to be a friend; he always had time for others.

After college, he went to California and worked as a waiter, actor and model. In fact, Michael was a good friend of Ron Goldman's and was killed just as the trial of O.J. Simpson finsihed. On September 8, 1995, Michael stopped at an ATM with his girlfriend, drove to the restaurant parking lot and was shot as he got out of the car.

Three months later, the individual who drove the getaway car admitted his participation. Three persons were arrested but released for lack of evidence. Offers of rewards and a feature on America's Most Wanted proved fruitless. No one has been charged with this murder.

Michael Nigg is the son of Gayle Hart of Littleton and Joe Nigg of Denver.

Continue to learn about more unsolved Colorado murders, including photos and personal stories of the victims.
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