Orlando police confirmed to Local 6 News Wednesday that investigators have utilized the department's polygrapher in the search for missing Orlando woman Jennifer Kesse.

---

NEW SLIDESHOW: Person Of Interest

---

Kesse, 24, was reported missing several weeks ago after she did not show up for work at Westgate Resorts in Ocoee, Fla.

Officials said they will not disclose who received a polygraph test or how many polygraphs have been administered.

A polygraph is an instrument that simultaneously records changes in physiological processes such as heartbeat, blood pressure and respiration, often used as a lie detector.

Family Makes Appeal On National TV

Meanwhile, Kesse's family appeared on national television Wednesday morning and made an appeal to the public for more information in the case.

On "The Early Show" Wednesday, Kesse's parents, Joyce and Drew, along with their son Logan talked with anchor Harry Smith about the case.

During the interview, Smith asked whether Kesse could have had any enemies.

"Honestly, no," Kesse's mother Joyce, said. "As a matter of fact, so many of us have been trying to find a picture of Jennifer not smiling to put on a poster because obviously she would not be smiling right now, and there are none. That kind of shows you what kind of person she is. You meet her and you want to be her friend."

Smith asked if Kesse's boyfriend had been cleared since the two traveled to the Caribbean before she vanished.

"To my knowledge, yes," father Drew Kesse said. "I don't think any of us are marked out but to my knowledge, I believe yes, he is out of the picture on that."

"The Early Show" showed surveillance photos released over the weekend of a person of interest seen at the Huntington on the Greens apartment complex near where Kesse's car was found.

"It is extremely important for us to talk to this person because they could really lead us back to Jennifer," Drew Kesse said.

Joyce Kesse urged people to revisit the jenniferkesse.com Web site if they had been in the Orlando area Jan. 24 through Jan. 26.

"Nothing is too insignificant," Kesse said.

CSI Teams Continue Search

Meanwhile, crime scene technicians were back at an Orlando apartment complex this week where Kesse's car was found after she mysteriously vanished last month.

Local 6 News has learned that investigators have been focusing on a surveillance camera lodged in a roof of the clubhouse at the Huntington on the Green apartments.

The camera captured several images of a person of interest who may have information about Kesse's whereabouts. The person was photographed through a gate that surrounds a pool at the complex.

A $115,000 reward is being offered for information about Kesse's whereabouts.

If you have any information, you are urged to call Crimeline at (800) 423-TIPS.

Watch Local 6 News for more on this story.