LEGAL MATTERS
A California judge threw out four of the claims Rob Lowe made in a lawsuit accusing Jessica Gibson, his former nanny, of defamation, among other charges. In her July 31 ruling, Superior Court Judge Denise deBellefeuille also tossed one of Gibson's claims that Lowe, 44, retaliated against her with legal action. Both parties sued each other in April, with Gibson, 25, accusing Lowe of groping her. He denied that. • Las Vegas police said they confiscated a handgun belonging to Jerry Lewis as he prepared to fly to Detroit on July 25. The actor, 82, was cited for having a concealed weapon in his carry-on luggage. Lewis's manager said the weapon was a prop gun that couldn't fire. However, the police 's public information officer Jacinto Rivera told PEOPLE, "It was a .22-cal. handgun, registered to Mr. Lewis. Prop guns do not require registration, so for the gun to be registered, [that] proves it is not a prop gun." • The company founded by "King of Bling" Jacob (the Jeweler) Arabov has sued Wyclef Jean, 38, for more than $300,000 in unpaid bills. The lawsuit claims the musician and activist bought $765,100 worth of watches and jewelry but has ignored repeated requests to settle his account. Jean's rep could not be reached.

AILING
Bernie Mac, 50, was hospitalized for pneumonia in his native Chicago. A spokeswoman said the actor and comedian "is responding well to treatment and will be released soon." She added that the pneumonia is not related to Mac's diagnosis of sarcoidosis, an autoimmune disease that has been in remission since 2005.

DEATHS
Bruce Ivins, 62, a government scientist under investigation for mailing anthrax-laced letters in 2001, committed suicide on July 29 after learning he might soon be indicted in the case. Ivins died at a hospital in Frederick, Md., after ingesting a massive dose of prescription Tylenol mixed with codeine. Coming shortly after the Sept. 11 terrorist attacks, the anthrax mailings killed five people, temporarily crippled the postal system and caused widespread fear of further terrorism.

HIRED: TIM RUSSERT'S SON LUKE
Following in his late father's footsteps, Luke Russert, 22, will help cover the upcoming Democratic and Republican conventions for NBC. A recent graduate of Boston College, Russert will focus on youth issues. His work will appear on NBC Nightly News, Today, MSNBC and msnbc.com. Tim Russert, the longtime host of Meet the Press, died on June 13 of a heart attack at 58. "I'm not trying to be my father," said Luke. "He's irreplaceable. I'm simply trying to do something that I think there's a real niche for, that there's a calling for, that has to do with youth, not just in the election but in politics from now on." Russert added that the opportunity to work for the network left him "humbled and grateful."