The Cherokee County Sheriff's Office on Friday released a second sketch of a man believed to have fatally shot four people in less than a week near Gaffney, South Carolina. "Let me say that, under the FBI's definition of a serial killer, yes, we have a serial killer," Sheriff Bill Blanton said. In addition, Blanton said he did not know whether the shooter knew his victims or whether he may have chosen them at random.

Sarah Palin said Friday that she will step down as Alaska's governor by the end of the month. She will not seek election to a second gubernatorial term in 2010. As the 2008 Republican vice presidential nominee, Palin had been considered one of the front-runners for the GOP nomination in 2012.

Fans must register online for a lottery to win tickets to Tuesday's Michael Jackson memorial at the Staples Center in Los Angeles, organizers said. People who don't have one of the 17,500 free tickets to be handed out should stay away and watch on TV, officials said.

While authorities do not yet know what killed Michael Jackson, the possibility that anesthetics -- particularly the drug Diprivan -- might be involved continues to swell. Sources close to Jackson told CNN's Dr. Sanjay Gupta that the singer traveled with an anesthesiologist who would "take him down" at night and "bring him back up" during a tour in the mid-'90s.

Get ready for the circus, writes Lee Jenkins. Manny Ramirez returns tonight following his 50-game suspension. Now the big question is, how will the NL West-leading Dodgers respond?

Roger Federer is headed to his seventh consecutive Wimbledon final after crushing Tommy Haas in straight sets. He'll face Andy Roddick, who upset Andy Murray in the other semifinal.

Hedo Turkoglu has broken off talks with the Portland Trail Blazers and that there is no deal, according to The Oregonian.

LOS ANGELES (AP) -- Phil Jackson is returning to coach the Los Angeles Lakers next season.