SERIAL KILLER: David Meirhofer

Teenager Bernie Poelman was shot on a bridge over a river in Manhattan, Montana.

Twelve-year-old Michael Raney was stabbed while sleeping in a tent during a Boy Scout trip at Missouri Headwaters State Park in Montana.

Around 1:30 a.m.

Sisters Heidi and Susie Jaeger briefly woke and talked before falling back asleep in their tent at Missouri Headwaters State Park.

After 5 a.m.

Heidi Jaeger woke to find a large hole cut in the tent and Susie missing.

The Gallatin County Sheriff’s Office and FBI Special Agent Pete Dunbar responded to the campground and launched a large-scale search for Susie Jaeger.

The FBI’s Denver field office received a call from a man claiming to have kidnapped Susie Jaeger and demanding a $25,000 ransom.

The kidnapper called the home of Gallatin County Deputy Ron Brown and raised the ransom demand to $50,000.

Twenty-year-old nurse Donna Lemon disappeared after she was seen buying beer at a bar in Gallatin Gateway, Montana.

Donna Lemon’s body was found along the Snake River in Idaho.

Susie’s older brother answered a phone call from the kidnapper, and the conversation was recorded.

The FBI traced the September phone call to a pay phone at a gas station diner near Cheyenne, Wyoming.

Nineteen-year-old Sandy Dykman was reported missing from Manhattan, Montana after she failed to return home and her car disappeared.

Investigators found burned human remains at the abandoned ranch. Some remains were identified as Sandy Dykman’s, while others belonged to a girl between 5 and 8.

Agent Pete Dunbar attended FBI training at Quantico, where behavioral profiling experts reviewed the Susie Jaeger and Sandy Dykman cases and developed a profile that matched David Meirhofer.

On the first year anniversary of Susie’s abduction, the kidnapper called her mother, Marietta Jaeger, and claimed Susie was still alive.

Investigators traced the anniversary phone call to a ranch near the abandoned property where Sandy Dykman’s remains had been found.

Investigators searched David Meirhofer’s property and discovered bloodstained sheets, children’s clothing, newspaper clippings about camps, and handwritten notes describing possible attack locations.

Marietta Jaeger received another call from the kidnapper after investigators briefly lost surveillance of David Meirhofer.

Investigators searched David Meirhofer’s freezer and found Sandy Dykman’s severed hand wrapped in butcher paper.

David Meirhofer confessed to murdering Susie Jaeger, Sandy Dykman, Michael Raney and Bernie Poelman. Hours later, he died by suicide in his jail cell.