Teen whose body found was punished for running away, authorities say

Last Updated: Monday, July 17, 2017, 4:23 PM EDT

The 13-year-old girl whose body was found last week had a history of running away from home, authorities said Monday.

Janessa Shannon, 13, was reported missing July 2. Ten days later, a hiker found a badly decomposed body in a heavily wooded area of the Triple Creek Nature Preserve.

The Hillsborough County Sheriff's Office is treating the case as a homicide.

During a Monday news conference, Donna Lusczynski of the Sheriff's Office said an Amber Alert wasn't issued because criteria including a suspect vehicle weren't met.

"Our primary function now at this time is to find Janessa's killer," she said. "We've been working diligently for the last several days."

Lusczynski said the girl's father told authorities that Shannon had run away before and was being punished for sneaking out of her mother's home.

Lusczynski also said the father cooperated but wouldn't let authorities search his home.

No suspect has been named in the case.

A vigil will be held at 7 p.m. Thursday at 201 11th Street West Drive, West Palmetto.

Crime Stoppers of Tampa Bay is offering up to $3,000 for information leading to an arrest. Anyone with information is asked to call 1-800-873-8477.