EAST ST. LOUIS, Ill. — Three young children were found dead Saturday, hours after a woman was charged with killing their pregnant mother and her fetus in a grisly attack in which authorities believe her womb was cut open after she was knocked unconscious.

The two boys, ages 7 and 2, and their 1-year-old sister were found together in an apartment in the East St. Louis public housing complex where their mother lived, Illinois State Police Capt. Craig Koehler said.

The kids were last seen Monday with family friend Tiffany Hall, 24, now charged with first-degree murder in the death of their mother, who is believed to have been slain days before her children disappeared. Hall is also charged with intentional homicide of an unborn child, prosecutor Robert Haida said.

Authorities said a lead directed them to check the apartment, which had not been searched previously. They declined to release more information.

"Anytime you have three deceased children, it's a very emotional time," Koehler said late Saturday as he fought back tears. "All these investigators have worked tirelessly with one outcome in mind—to find these children alive."

An autopsy showed Tunstall, who was seven months pregnant, bled to death after sustaining an abdominal wound caused by a sharp object, believed to be scissors, said Ace Hart, a deputy St. Clair County coroner. He called the slaying "very graphic and very brutal."

Family members told the paper Tunstall had lost custody of her children at one point but was trying to get her life back on track. "She had a heart of gold," Myers said.

Hall and the fetus were taken to a hospital, where she would not let doctors examine her and offered conflicting reasons for why she went into labor, alternately saying she had consensual sex and was raped, Hart said. The dead baby showed no signs of trauma, and an autopsy the next day failed to pinpoint a cause of death, Hart said.

Authorities say Hall acknowledged to her boyfriend during the baby's funeral Thursday that the child wasn't his, and that she had killed the mother to get it. The boyfriend, reportedly a sailor home on leave, told police, who arrested his girlfriend hours later, investigators said.

Hall, jailed on $5 million bond, will likely be arraigned Monday on the two charges, each carrying a 20 to 60 years or life in prison, Haida said. The murder count could be punishable by the death penalty.

The baby was buried Thursday as Taylor Horn after a funeral arranged by L. King Funeral Chapel, whose president said Hall called minutes after the service was to start, asking if she could reschedule for a different day so more relatives could attend. At the time, Levi King said, only two relatives were there.

Shannon Torrez, 36, of Lonedell, Mo.—south of St. Louis, about an hour's drive from here—is accused of slashing a young mother's throat and kidnapping her baby on Sept. 15. The baby was returned unharmed Tuesday, the same day Torrez was arrested.

Also in Missouri, Lisa Montgomery is to stand trial April 30 on charges of snatching a baby from the womb of Bobbie Jo Stinnett at her Skidmore, Mo., home in 2004. The baby survived.

This is cache, read story here