A 22-year-oldJacksonville, Florida woman charged with shaking her baby to death pleaded guilty Wednesday to a charge of second-degree murder and faces 25 to 50 years in prison. The woman apparently becamse angry when the baby’s crying interrupted her playing Farmville on Facebook.

"He's only 14 weeks old; he's not breathing," the woman frantically told a 911 operator.
Prosecutors said they have a statement from a cellmate who said Tobias confessed to her.
"I asked her 'what you here for?' and she said, 'Murder,'" inmate Lois Hay said. "I said, 'Murder? Who did you murder?' She said, 'I my murdered my baby, my own baby.' And I was, like, 'Why did you do that?' She said she shook her baby and during the shaking of the baby, the baby hit his head on the computer."

In recorded telephone calls Tobias made to family members, she said the recent death of her mother affected her psychological state, and it may have been contributing factors to her aggression on the night of her son's death.

"Ever since I found my mother dead, I just haven't been the same," the woman said. She is held without bail.