Curveball - informant - was born in 1968.

The singular possessive of informant is informant's.

An informant.

The singular possessive form of "informant" is "informant's," used to show ownership or relationship of a single informant to something else.

A hanging curveball is a curveball that is thrown in a way that makes it easier to hit. A good example of one is a slow curveball that is thrown down the middle. If you get one of these babies thrown to you while your at the plate, swing at it. It is an easy pitch to crush for a dinger or at least a double.