1.   Fire officials said they believe the blaze originated in the destroyed heavy rescue squad truck but had not pinpointed a cause Friday.

2.   Investigators are trying to pinpoint the cause of the fire.

3.   It was almost impossible to pinpoint the cause of death.

4.   They were finally able to pinpoint the cause of the fire.

5.   Medical science may not be able to specifically pinpoint the cause of the disease or link negligent conduct to its appearance.

6.   An autopsy has failed to pinpoint the cause of death of world champion yachtsman Larry Klein, who perished in the San Francisco Bay during a weekend yacht race.

7.   An equal number were too decomposed for scientists to pinpoint the cause, but Wright said they most likely died from natural causes, too.

8.   As of early Friday morning, however, an autopsy had not been done to pinpoint the cause of death.

9.   Bodies that suffer trauma from an explosion would help investigators to pinpoint the cause.

10.   But First Aid also comes with a suite of diagnostic programs that let you pinpoint the causes of other annoying problems.