Michael Jackson's personal doctor was found guilty on Monday of involuntary manslaughter in the pop star's drug-related death in 2009 but may not spend much time in jail.

Dr. Conrad Murray, 58, was led away in handcuffs after the jury in Los Angeles reached a unanimous verdict. Dozens of fans outside the court erupted in cheers and some burst into tears.

"Justice was served. Michael is with us," said Jackson's brother Jermaine.

Murray faces up to four years behind bars when he is sentenced on November 29 but may spend only months in Los Angeles' overcrowded cells.

Murray pleaded not guilty to giving the "Thriller" singer a fatal dose of the powerful anesthetic propofol -- normally used in surgery -- that was ruled the main cause of his death at the age of 50.

Prosecutors argued Murray was grossly negligent in administering the propofol to help Jackson sleep. Defense lawyers claimed Jackson delivered the fatal dose to himself.

The judge ordered Murray, who had been free on bail for two years, held in custody until his sentencing. The doctor did not testify at the six-week trial and looked impassive as the guilty verdict was announced in the packed courtroom.

Jackson's mother Katherine and sister Rebbie cried silently at the result. Other family members in court included his siblings La Toya and Randy, along with his father Joe.

"I am," Katherine Jackson said when reporters asked if she was pleased with the verdict.

Jackson was found lifeless at his Los Angeles mansion on June 25, 2009, about three weeks before he was due to begin a series of concerts in London aimed at returning him to the limelight after the humiliation of his 2005 trial and acquittal on child molestation allegations.

Murray admitted giving Jackson a small dose of propofol to help him sleep. But his lawyers argued the singer was dependent on the drug and likely gave himself an extra, fatal dose -- and swallowed a handful of sedatives -- without Murray knowing.

"THE CAUSATIVE FACTOR"

Murray's lawyer J. Michael Flanagan was asked by reporters if he was disappointed and he replied: "Of course."

Prosecutors said Murray was negligent for administering the drug in a home setting, failing to monitor Jackson, delaying a call to emergency services and failing to tell medical personnel he gave the singer propofol.

Judge Michael Pastor said Murray was "now a convicted felon who has been deemed the causative factor in Michael Jackson's death."

Pastor said the doctor should be detained before being sentenced to protect public safety.

Even if Murray is sentenced to the maximum four months, legal experts said involuntary manslaughter is not considered a serious felony in California law and carries a stipulation that only 50 percent of any sentence must be served behind bars.

Because of jail overcrowding, officials could release him after only months.

"It's pretty obvious by putting him in custody, which was the biggest surprise of the entire trial, that we're probably looking at a sentence of three to four years," Stan Goldman, a professor at Loyola Law School, told Reuters.

But he added: "I'd be surprised if a year from today Conrad Murray was still behind bars."

Still, Jackson fans were overjoyed. On the street outside the court, more than 100 of them whooped with joy and chanted "Thank you judge" as the verdict was read live on television.

Bus driver Dana Brenklin, 35, burst into tears.

"Of course it's not enough and it's not going to bring back Michael. But for two years, I had a project, justice for Michael Jackson, and I got what I wanted," Brenklin said.

Trial watchers said the guilty verdict was almost assured.

Prosecutors were required to prove only that Murray was reckless in his care. The judge told jurors the doctor could be found guilty even if the jury believed Jackson gave himself the propofol, as long as such a possibility was foreseeable.

"The prosecution did a great job of creating a portrait (of Murray) that asked 'Is this how someone would have acted if he was responsible?'" said Marcellus McRae, a former federal prosecutor who is now a trial lawyer with the New York-based law firm Gibson Dunn

Yang Huiqing looks at her baby after a cesarean section in Ruijin Hospital in Shanghai October 24, 2011. Yang and her husband Chen Yiming, both born under the one-child policy, had their first baby as the world population was about to reach the seven billion mark.

WARNING: GRAPHIC CONTENT Ten years ago, U.S. forces began bombing Afghanistan in retaliation against its Taliban rulers who refused to hand over the al Qaeda leaders responsible for the Sept. 11, 2001 attacks on the United States. Within weeks, the air strikes had helped Afghan opponents topple the Taliban, but in the decade since, the deposed Islamist fighters have returned to mount an ever more aggressive insurgency against an Afghan government backed by the United States and NATO. Since U.S. President Barack Obama took office in 2009, the U.S. force has tripled in size, but Washington and NATO now plan to begin withdrawing and to hand over responsibility for Afghanistan's security to Afghan forces by 2014. 

ANKARA, Turkey — Cries of panic and horror filled the air as a 7.2-magnitude earthquake struck eastern Turkey, killing at least 138 people as buildings pancaked and crumpled into rubble. The death toll was expected to rise as rescuers sifted through the rubble and reached outlying villages.

Tens of thousands fled into the streets running, screaming or trying to reach relatives on cell phones as apartment and office buildings cracked or collapsed. As the full extent of the damage became clear, survivors dug in with shovels or even their bare hands, desperately trying to rescue the trapped and the injured.

"There are many people under the rubble," Veysel Keser, the mayor of the district of Celebibag, told NTV. "People are in agony. We can hear their screams for help."

Celebibag is near the hardest-hit area: Ercis, an eastern city of 75,000 close to the Iranian border and on one of Turkey's most earthquake-prone zones. The bustling city of Van, about 55 miles (90 kilometers) south of Ecris, also sustained substantial damage. Highways in the area caved in. The temblor struck at 1:41 p.m. (1041 GMT; 6:41 a.m. EDT), the U.S. Geological Survey said.

Prime Minister Recep Tayyip Erdogan said at least 93 people were killed in Van, 45 others died in Ercis, and about 350 were injured. Several people were still trapped under rubble, he said, without citing any estimates.

Erdogan said rescue work would continue through the night.

Up to 80 buildings collapsed in Ercis, including a dormitory, and 10 buildings collapsed in Van, the Turkish Red Crescent said. The sheer number of collapsed buildings gave rise to fears that the death toll could rise substantially.

U.S. scientists recorded over 100 aftershocks in eastern Turkey within 10 hours of the quake, including one with a magnitude of 6.0. Authorities advised people to stay away from damaged homes, warning they could collapse in the aftershocks.

Following the capture of Muammar Gaddafi's hometown of Sirte, contradictory reports suggest that Colonel Gaddafi may have been killed or captured in Libya.

Al Jazeera and Libyan state television are reporting that the Libyan dictator has been killed during a gunbattle in Sirte. A senior National Transitional Council official, Abdel Majid, told Reuters by telephone that Gaddafi has died of wounds suffered during his capture in Sirte. Reuters reports that he was wounded in both legs as he "tried to flee in a convoy which NATO warplanes attacked."

The U.S. State Department has not confirmed Colonel Gaddafi's capture or death. "The State Department cannot at this time confirm media reports on the capture or killing of Muammar Qadhafi,” spokesperson Victoria Nuland said, according to Politico.

The Associated Press reports:

The Misrata Military Council, one of multiple command groups for revolutionary forces, says its fighters captured Gadhafi in Sirte. Another commander, Abdel-Basit Haroun, says Gadhafi was killed when an airstrike hit a convoy trying to flee.
Despite conflicting reports regarding whether Gaddafi has been killed or captured, in Tripoli, celebrations are already underway with gunfire and honking. "We've heard quite a lot of celebratory gunfire," Caroline Hawley reports for the BBC.

Secretary of State Hillary Rodham Clinton visited Libya on Tuesday to offer a new aid package. She told students during a gathering in Tripoli, "We hope [Gaddafi] can be captured or killed soon so that you don't have to fear him any longer."

Gaddafi was ousted from power in August, and his whereabouts have been unknown for months. The Criminal Court in The Hague, Netherlands, accused Libya's former ruler of crimes against humanity.

Reuters is also reporting that an official from the National Transitional Council, Libya's interim government, has confirmed the death of Abu Bakr Yunis Jabr, Gaddafi's Minister of Defense.