11.   A mix of personal and political factors appeared to have motivated Madubela -- a former member of the PAC armed wing -- to kill his colleagues.

12.   A Mexican opposition-party activist reported as kidnapped has turned up in prison, accused of killing a colleague he accused of embezzling money, newspapers reported Tuesday.

13.   A soldier in the Caribbean contingent of the U.N. military mission shot and killed a colleague, mission spokesman Eric Falt said Friday.

14.   A U.N. Caribbean peacekeeper killed a colleague in southern Haiti by repeatedly shooting him in the head and chest, the United Nations reported Friday.

15.   An investment banker who allegedly killed a colleague by setting fire to his Hawaiian grass skirt at an office party appeared in court Friday charged with manslaughter.

16.   An army officer convicted of killing a colleague was executed in a public square Monday, military court officials said.

17.   Banana was brought to trial after a police inspector who worked as his bodyguard killed a colleague who had taunted him for his alleged relationship with the former president.

18.   Cadet kills six colleagues in gunfire spray.

19.   From a Swedish TV crew, it told how bandits killed their colleague, the eighth journalist to die in Afghanistan in two weeks.

20.   In one case, a collector killed two colleagues and then smuggled their valuable icon collection to Germany.