LATEST: Ivana Trump's son was joking when he threatened to kill his mother's new husband ROSSANO RUBICONDI at their wedding last month (12Apr08).
Donald Trump Jr. handed over his mother to her Italian toyboy with a chilling warning for the 35-year-old groom.
He remarked in front of the wedding's 500 guests: "We are a construction company and we have job sites, we lose people. You better treat her right, because I have a .45 and a shovel."
And though Trump Jr. admits he has spoken to the groom "man to man" about an incident when his mother called police to remove Rubicondi from her home earlier this year (17Mar08), he insists the speech was all in good fun.
He says, "Rossano's always been straight up with me. If he treats her with respect, that's all you can ask."
The couple wed in a lavish ceremony at the Palm Beach, Florida estate of Trump's ex-husband, property mogul Donald.