1.   Police found a note saying the tribesmen killed the children in retaliation for the beheading of a fellow tribesman during a drunken brawl last year, the military said.

2.   After all, Lindomar was a Guarani-Kaiowa, and his tribesmen have been killing themselves at an alarming rate for years.

3.   Al-Jaradi tribesman have killed two members of the al-Arabigah tribe in retaliation, they said, and fighting was continuing late Saturday.

4.   Al-Jaradi tribesman killed two members of the al-Arabigah tribe in retaliation, and fighting continued into the night, leaders said.