1.   A motive for the killing of the father-of-four has yet to be established, although police have not ruled out a drugs link.

2.   A few members find themselves under investigation for corruption or drug links.

3.   Diplomats say three senior ministers were forced to resign because of drug links but remain party strategists.

4.   Munoz Rocha has also suggested drug links, saying in one letter that he would turn himself in but wanted protection from Abrego Garcia, media reports said.

5.   Munoz Rocha has also suggested drug links, saying in one letter that he would turn himself in but wanted protection from the Gulf Cartel leader.

6.   A drugs link is suspected.

7.   Jorge Carillo faces a battery of accusations, ranging from drug links and protecting kidnappers to incompetence.

8.   Military concedes some drug links.

9.   Mongkhol was an aide to prominent northern politician Narong Wongwan, who also has been denied a U.S. visa because of suspected drug links.