RAW VIDEO: Parents Of Teen In Stowaway Investigation Discuss Plans To Sue Airport, Airline

VIDEO: Parents Of Teen In Stowaway Investigation Want More Information

Eyewitness News was the first station to sit down with 16-year-old Delvonte Tisdale's mother and father and their attorney on Thursday morning as they discussed their plans to file a lawsuit.

Massachusetts authorities said they think the 16-year-old sneaked onto a plane at Charlotte Douglas International Airport and stowed away in a wheel well. They said when the plane deployed its landing gear as it approached Boston, Tisdale's body fell to the ground in Milton, a suburb of Boston.

The aviation director at Charlotte Douglas International Airport, Jerry Orr, asked police in December to launch an investigation into how someone could have possibly sneaked onto the tarmac.

But a month later, Tisdale's parents, Jonette Washington and Anthony Tisdale, said they are still no closer to finding answers.

"We're just sitting in wait," Anthony Tisdale said. "We're just waiting."

Their attorney, Christopher Chestnut, said Thursday that they think Tisdale's body fell from a U.S. Airways plane.

U.S. Airways officials told Eyewitness News that they have no comment because the case is an ongoing investigation.

"How is it that an airport and airline, post-9/11, can't tell us how someone got onto their airplane?" Chestnut said.

Chestnut said he's asked the airport and airline officials for surveillance video, but has been told they have no video showing Tisdale at the airport. He said it's not clear whether surveillance video of that area on the tarmac even exists.

"I just want them to do their job," Jonette Washington said, "Make sure everything is secure for other people."

Anthony Tisdale said his son had no reason to go to Boston and that he's baffled at why this happened.

"It's not in my capacity to say what my son was thinking," he said.

He and Washington said to move forward, they need the airport and airline to help them piece together what happened to their son.

"You know, we miss him," he said, "and the answers will bring some sort of peace."

Massachusetts authorities said they are still waiting on lab results that may link aviation grease found on Tisdale's pants to the grease used on the plane and a hand print in the plane's wheel well.