(CBS/AP) Julie Powers Schenecker, a Florida mother who police say killed her teenage daughter and son because she was fed up with them being "mouthy," was released from a hospital late Sunday morning and taken back to jail.
The 50-year-old Army officer's wife had been receiving treatment for an unknown medical condition that existed before her arrest Friday. She is scheduled to make her first court appearance Monday morning and is being represented by a public defender.
According to an arrest affidavit, Schenecker shot her 13-year-old son Beau in the head twice "for talking back" while they were in the family car on their way to his soccer practice. The report said Schenecker then returned to their upscale home and shot her 16-year-old daughter Calyx in the face while the girl studied at her computer.
"She did tell us that they talked back, that they were mouthy," says Laura McElroy, with the Tampa Police Department, told CBS affiliate WTSP. "But I don't think that will ever serve as an explanation to the rest of us of how you could take a child's life."
Police say they found Schenecker drenched in blood on her back porch.
Investigators believe the teens "never saw it coming," said police spokeswoman Laura McElroy. Both were killed with a .38-caliber pistol. The arrest affidavit said the weapon was purchased five days earlier.
Schenecker's mother called police Friday morning because she was concerned about an e-mail her daughter sent saying she was depressed.
Schenecker's husband, Parker Schenecker, is a career Army officer attached to U.S. Central Command in Tampa. He was working in the Middle East when the shootings happened.
Calyx was a cross country running star at her high school. Beau was in eighth grade.