41.   Authorities said they had not determined the motive for the shootings, but said the murders were likely done by professional killers.

42.   Authorities said they were still trying to determine a motive.

43.   Authorities had yet to identify any suspects Tuesday, and said they had not determined a motive.

44.   But she indicated investigators had not determined the motive for the killing.

45.   Detectives said they were not able to immediately determine a motive for the stabbing.

46.   FBI agent Bob Reilley said investigators were trying to determine a motive.

47.   Goulet said authorities had not determined the motive for the shootings.

48.   He said investigators had not determined a motive for the attack.

49.   He said the Thai government had intensified intelligence gathering in order to determine the motives behind the terrorist activities in the southernmost provinces for the past two months.

50.   He said police had not yet determined a motive.