1.   JILTED boyfriend Alan Graham killed his lover with a sawn-off shotgun yesterday before turning the weapon on himself.

2.   A JILTED boyfriend left his ex-love with something to remember him by her car, crushed into a block.

3.   Another jilted boyfriend struck Monday, authorities said.

4.   The message is either a jilted boyfriend pleading for another chance or a homicidal maniac vowing mayhem.