Case Facts: On Dec. 3, 2004, a police officer in Jennings, Mo., a suburb of St. Louis, responded to calls from relatives worried that they had not heard from Angela Rowe or her children for several days. The officer went to the home where Rowe lived with her boyfriend, Leonard Taylor.

The officer found the bodies of Rowe, 28, and her three children, daughters: Alexus Conley, 10, and AcQreya Conley, 6; and her son, Tyrese Conley, 5. They had been shot.

Taylor had boarded a Southwest Airlines flight from Lambert International Field to Ontario, Calif., on the morning of Nov. 26, 2004. He claimed the victims were still alive when he left. Witnesses and phone records indicated Taylor had already murdered them before his departure. From California, Taylor had traveled to Texas, Alabama and Kentucky before police and federal marshals caught him in the back of a car in Madisonville.

A speck of blood on one of three pair of Taylor’s specatacles police found in his luggage matched Rowe’s blood, a DNA test later revealed.

Case facts courtesy of the St. Louis Post-Dispatch