1.   Detectives believe that the victim knew his killer.

2.   From the evidence, we can infer that the victim knew her killer.

3.   It is likely that the girl knew her killer.

4.   Police had ascertained that the dead man knew his killer.

5.   From the evidence we can infer that the victim knew her killer.

6.   Authorities have said the Zantops most likely knew their killer and invited him into their home.

7.   Beqiri told Cox Newspapers that he knows the killer by name and has heard he still works as a policemen in the nearby town of Stimlje.

8.   But based on the few clues they have in the case, prosecutors believe the girl knew her killer.

9.   Four out of every five murder victims knew their killers.

10.   In four deaths, the killers are not known.