Julie Powers Schenecker Weeps in Court, Bail Denied in Murders of Daughter Calyx and Son Beau

(CBS/AP/WTSP) Julie Powers Schenecker, the Florida mother who police say killed her teenage daughter Calyx and son Beau "for talking back" to many times, did not speak at a bail hearing Monday - but was clearly weeping and clutching a tissue at her first appearance in Hillsborough County Court in Tampa.

"At this point miss, you're obviously going to be held without bond," Circuit Judge Walter Heinrich told her, according to CBS affiliate WTSP.

For two days, Schenecker had been hospitalized in intensive care for a pre-existing medical condition. Jail officials say it was that medical condition that apparently left her visibly shaking and contorted as they escorted her from the Tampa Police department on Friday.

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 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 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.

COMPLETE COVERAGE OF JULIE POWERS SCHENECKER ON CRIMESIDER