11.   The two families have sued Attorney General Thomas F. Reilly, whose predecessors investigated the killings, demanding access to semen samples and other forensic evidence in the murders.

12.   Their blood type matched the semen samples, and the victim said the younger man had a stutter, as does Dale Mahan.

13.   This can be done simply delivering a semen sample to a reliable laboratory or male fertility specialist within two hours of ejaculation.

14.   Alarmed by the threat to Herdwicks and other rare breeds, scientists fanned out across Cumbria, taking semen samples and embryos from hundreds of sheep.

15.   It made sense to have the semen sample compared to his DNA, on file in Virginia, the first state to establish a DNA databank of felons.

16.   Over the next seven years, state courts denied his requests to compare his DNA to the semen sample stored in the Terrebonne evidence room.

17.   Prosecutors still had the rape kit, including a semen sample.

18.   The currently available home test for men gauges the concentration of sperm in a semen sample.

19.   The two semen samples did not match.

20.   Trainers taught the male whale to roll on his back so they could get semen samples, which were then cooled and shipped across the country.