In 1989, 20-year-old Krista Martin was brutally raped and murdered in her Wichita, Kansas apartment after a night out with friends [citation:1]. The case grew cold for decades, but in 2020, investigators turned to forensic genetic genealogy, building a family tree from DNA left at the crime scene [citation:2]. The technology led them to Paul Hart, a man who had lived near Krista at the time of her murder [citation:1]. Although Hart had died in 1999, DNA from his relatives confirmed his identity as the killer, finally bringing closure to Krista's family after 34 years [citation:1][citation:2].