A crazy animal rights activist has threatened to kill Jennifer Lopez in public, “just like the slaughtered animals whose fur she wears.” Jennifer believes the letters are idle threats from a lunatic and have largely ignored them. Husband Marc Anthony disagrees.

“He has hired two off-duty police officers, in addition to her usual security team, to watch over Lopez whenever she makes public appearances,” says the pal.

Lopez’s spokeswoman shot the story down as “untrue.” She said: “[Lopez] has had the ...