A statement said to be from al Qaida, claimed the terror group had killed one American and kidnapped another in Riyadh.
Can we say the following?
A U.S. citizen working in Riyadh has been kidnapped after a colleague in the same company was shot dead yesterday.

yes

Most of Grameen Bank's borrowers use the small loans to start businesses by, for instance, buying a cow to produce milk, or a rickshaw, or materials to make cloth or pottery.
Can we say the following?
Grameen Bank's loans are used to buy a cow.

yes

The settlement must be approved by Citigroup's board of directors and the board of Regents of the University of California, the lead plaintiff for investors in the case.
Can we say the following?
The University of California's board of Regents still needs to ratify the settlement - as does Citigroup's board of directors.

yes

The body of Satomi Mitarai was found by a teacher after her attacker returned to class in bloody clothes.
Can we say the following?
Mitarai's body was found by a teacher after her killer returned to their classroom covered in blood.
yes