On December 28 2017, 19-year-old Natalie Bollinger was at home in her apartment in Broomfield, Colorado. But when her boyfriend Joey got home from work that afternoon, Natalie was gone. So was his 9mm Glock. Joey tried to call Natalie but noticed that her cellphone was still at home. So he called the police and reported Natalie missing.     The next day, December 29, police got a tip that a body had been found on land belonging to the McIntosh Dairy farm in a wooded area north of Denver, Colorado. They confirmed it was Natalie Bollinger. And the killer was someone no one expected.  If you have a case you’d like Catherine to look into, you can reach out to the Hell and Gone Murder Line at 678-744-6145. See omnystudio.com/listener for privacy information.