Homosassa, Fla. ? A man photographed at a convenience store with two children hours after a girl vanished from her nearby home was not involved in the girl’s disappearance, police said Sunday.

Investigators released a surveillance camera picture of the man because they initially believed it could hold clues to the whereabouts of 9-year-old Jessica Marie Lunsford, who was last seen in her bedroom about a half-mile from the store.

Lunsford’s relatives saw the videotape and did not think the girl in the picture looked like Jessica, but the Citrus County sheriff’s office asked for the public’s help in following it up.

Detectives said later that the people in the picture were not involved in the girl’s disappearance.

Meanwhile, the fourth day of the search for Lunsford ended without any sign of her. She was last seen Wednesday night, when she went to bed. Her father discovered she was missing the next morning. Police have said a door at the home was unlocked and one of the third-grader’s dolls was gone.

Sheriff Jeff Dawsy said the girl’s disappearance is not a confirmed abduction and he has not ruled out any possibilities.

“The leads that are coming in are not generating us in any one direction. We’re not getting anything that’s going to move this case forward at this time,” sheriff’s spokeswoman Ronda Hemminger Evan said.

Despite Sunday’s heavy rain and a tornado watch, nearly 540 volunteers turned out to comb the rural community, about 60 miles north of Tampa.

Volunteers searched residential areas, the shoulders of a four-lane highway about a half-mile from the girl’s house and the 3,000-acre Withlacoochee State Forest about four miles away.

The Citrus County Sheriff's Office released this still image from a surveillance video Sunday in hopes of relating it to the case of a missing 9-year-old.

Evan said today likely would be the last day of the wide search.

Atlanta Braves pitcher Mike Hampton, a Homosassa native, and his wife put up a $25,000 reward for Jessie’s return.