1.   Although neighbors have said the two men occasionally argued loudly, prosecutors have not offered a motive for the killing.

2.   A motive was offered in a draft letter found in the computer.

3.   Investigators could not offer a motive but ruled out murder-suicide.

4.   Interspersed with this testimony were accounts from witnesses who offered a motive connecting McVeigh to the bombing.

5.   Investigators could offer no motive Friday for the bloody rampage at the two brokerage companies, Momentum Securities and All-Tech Investment Group.

6.   Neither the police nor Arnold Berliner, the administrative assistant district attorney for Staten Island, would offer a motive for the killing.

7.   No motive was offered at the second trial.

8.   Police did not immediately offer a motive for the attack, though Commissioner Howard Safir said Vasquez and the victim may have quarreled about Ms. Abdela.

9.   Police did not offer a motive.

10.   Police offer no motive, however.