By Nancy Miller
Updated August 16, 2002 at 04:00 AM EDT

BIRTHS Stone Temple Pilots frontman Scott Weiland, 34, and his model wife, Mary, 27, have another copilot, second child Lucy Olivia, born July 20. She joins brother Noah, 1.

ENGAGED Must be true romance. Patricia Arquette (Human Nature), 34, has promised to marry actor Thomas Jane (61*), 33. Arquette’s spokeswoman did not give a date. She and Nicolas Cage were divorced last year after six years of marriage. This will be Jane’s first trip to the altar.

WEDDINGS ABC News’ Elizabeth Vargas, 39, walked down the aisle with Grammy-winning ”Walking in Memphis” singer-songwriter Marc Cohn, 43, July 20 in New York City. It’s her first marriage, his second.

DEALS Spider-Man Tobey Maguire, 27, will earn $12 million to play a jockey in the true horse tale Seabiscuit, says a source close to the actor. Pleasantville director Gary Ross is slated to begin production this fall for release next year.

AILING ABC News pundit Cokie Roberts, 58, has begun chemotherapy for breast cancer. She expects to fully recover.

ARRESTS He’s not in Stuckeyville anymore. On Aug. 1, Ed doc Josh Randall, 30, pleaded not guilty to drug possession after his July 31 arrest in a Brooklyn park for allegedly buying crack from — and then smoking it with — homeless man Charles Foster, 40. The actor’s lawyer denies the charges, saying Randall got lost and gave the man $20 out of charity; Foster could not be reached. An NBC spokesman says the incident will not affect Ed’s shooting schedule. Randall is set to return to court Sept. 9…. On Aug. 2, after spending four days in an L.A. jail, Jackass’ Steve-O (ne Stephen Glover), 28, was released on $150,000 bail and ordered to turn himself in to authorities in Terrebonne Parish, La., to face charges of felony obscenity and second-degree battery. Cops allege that on July 11, at the Houma, La., nightclub the Abyss, Steve-O stapled his scrotum to his thigh on stage — and that the atmosphere his act created led to an incident in which a bouncer knocked a 19-year-old man unconscious. The club’s owner, who also faces charges, had no comment. Steve-O’s Louisiana-based lawyer could not be reached…. ”Come Home With Me” rapper Cam’ron (a.k.a. Cameron Giles), 26, pleaded not guilty July 31 to felony gun-possession charges after being pulled over in New York City for allegedly having a phony fire-department placard in his car window. A lawyer for Cam’ron, due back in court Sept. 9, says the performer ”will be vindicated.”

DEATHS Songwriter Joe Allison, 77, whose ”He’ll Have to Go” was recorded by Elvis Presley and Bing Crosby, of lung disease, Aug. 2, in Nashville…. Mexican actor Roberto Cobo (1950’s Los Olvidados), 72, reportedly of cancer, Aug. 2, in Mexico City…. Jazz pianist-singer Roy Kral, 80, who performed with his wife, Jackie Cain, 74, in the ’50s duo Jackie and Roy, of congestive heart failure, Aug. 2, in Montclair, N.J…. Emmy-winning TV writer Joel Oliansky (1970’s The Senator), of heart failure, July 29, in L.A.