In Grand Junction, Colorado, real estate developer Alan Helmick is found shot in his home and his car later set on fire. Investigators focus on his wife, Miriam Helmick, after a hand-delivered threatening greeting card is traced to her by surveillance footage. Additional evidence, including incriminating online searches, forged checks, and a ballistic match to a decades-old bullet, points to motive and opportunity. Prosecutors say Miriam stood to gain financially, and forensic work helped secure her conviction for first-degree murder and a lengthy prison sentence. The case shows how small pieces of physical and digital evidence can connect to form a compelling case.