Police are trying to piece together a timeline of Jonchuck's week. Detectives think he might have spoken to members of a Tampa-area church in the days before dropping his daughter over the bridge. Officials are especially interested in anyone who might have seen Jonchuck, his daughter, or his PT Cruiser vehicle on Wednesday.

Phoebe's death led state's child welfare agency to revamp how it handles calls to its abuse line, requiring officials to respond within four hours if a caregiver is believed to be experiencing a psychotic episode. Jonchuck's attorney called the Florida Department of Children and Families hotline at 2:45 p.m. Wednesday, saying Jonchuck was "depressed and delusional."

The lawyer, Genevieve Torres, also called Hillsborough County Sheriff's deputies. Torres told the 911 dispatcher she had asked Jonchuck if he wanted her to file paperwork in his custody case during a meeting Wednesday in Tampa.

"It's not going to matter anymore," she recalled him saying.

"That really scared me," Torres told the dispatcher, her voice trembling. He was "out of his mind."

A child welfare services team is reviewing the agency's involvement with the family, which included at least three prior investigations. Both Jonchuck and the child's mother had arrest records and there were allegations of drug abuse in the home.