1.   As a result, even before police determine whether Rivera was killed to keep her silent, her murder has put the spotlight on local witness protection efforts.

2.   Actually, it appears that Arkadin is using the investigation to locate former associates and have them killed to keep them quiet.

3.   If so, would they give it up, or have him killed in order to keep it?

4.   President Emile Lahoud, in a statement, claimed Hobeika was killed to keep him from testifying before a possible crimes against humanity trial against Sharon.

5.   Police have since speculated that the cult ordered him killed to keep him from implicating Asahara.

6.   Dahmer, convicted in all but one of the sex killings in Milwaukee and Ohio, said he sometimes killed to keep the men from leaving him.

7.   Dahmer, convicted in all but one of the sex killings in Milwaukee and Ohio, said he sometimes killed to keep his lovers from leaving him.

8.   Investigator said he was killed to keep him from telling authorities about links between World Jai Alai and the mob.

9.   Prosecutors say Valdes was killed to keep him from telling the media about beatings and mistreatment of other inmates.

10.   Several Lebanese leaders, including President Emile Lahoud, have claimed Hobeika was killed to keep him from testifying at a possible Sharon war crimes trial.