Nation An Idaho cold case of a woman killed in 1987 has been solved, Boise police say July 8, 2023Kate Perez, USA TODAYComments Off on An Idaho cold case of a woman killed in 1987 has been solved, Boise police say The murder of Joyce Casper, a 65-year-old shop owner from Boise, Idaho, was recently solved after 35 years of investigations using new DNA technology.