The following story is from London's Daily Mail:
Could hospital car park solve mystery of two teenagers and a mother who vanished without trace 18 years ago?
Police flooded with tips after case is aired on TV
- May dig up hospital parking garage
- Garage was under construction when women disappeared in 1992
- Hospital is about five minutes away from their home
- Police reconfirm commitment to '3MW'
Officers in Springfield, Missouri, have been flooded with tips since the television show aired.
They are now considering digging up a hospital parking garage under construction when the trio vanished from their home, which was a five-minute drive away.
Sherrill Levitt, 47, her daughter Suzanne Streeter, 19, and friend 18-year-old Stacy McCall, have not been seen since June 7, 1992.
|Sherrill Levitt talked to a friend at around 11.15pm and was then never seen again|
Sherrill Levitt talked to a friend at around 11.15pm and was then never seen again
After Monday's programme, The Springfield Three, aired on the Investigation Discovery cable channel, police chief Paul Williams vowed to keep the investigation his top priority.
Department spokesman Corporal Matt Brown said: 'We are very committed to it. We don't know if this is a case where what happened is known by only a few people or many.'
He said police hope anyone with 'even a small piece of information they are holding onto that they don't think is important' will come forward.
The show detailed the events surrounding the mystery which began after the teenage girls graduated from Kickapoo High School in Springfield.
They were last seen around 2.15am when they left a graduation party and headed back to Suzanne's home to spend the night.
The original poster issued by police when the women went missing in 1992
The house in Springfield where Suzie Streeter and her mother lived before they vanished
When the alarm was raised the following day, investigators found their cars in the driveway of the house at 1717 E. Delmar Street.
The beds had been slept in. Broken glass was on the porch. The dog was restless. The TV was fuzzy. Their purses, money and keys remained in the house.
The only possible hint of foul play was a shattered ceiling light fixture on the front porch.
All the eerie details were retold as the show revealed how 5,000 leads have been investigated and despite alibis, a number of people are still on the suspect list.
The frustrations by investigators were also highlighted. 'It became an animal of its own,' retired detective
Mark Webb said of the investigation.
Allen Neal, lead detective with Springfield police, said: 'I can't think of another case that has come close to this level.'
|Stacy's mother Janis McCall|
'My gut feeling is, 'I'm pretty sure they're not alive,' but I have this little corner in my heart that says Stacy's still alive and I'm going to get her back.'
'People that may have forgotten something or maybe remember now,' This [show] gives them a chance to call police and say this was really important.
'We're going to find answers for ourselves and each other. It may be the tip we've been waiting on.'
As far as suspects are concerned, Mrs McCall thinks that everyone who was interviewed should be talked to again.
She also thinks it's important to consider anyone in the area at that time who was or is a known abductor or murder.
After her daughter's disappearance, she launched One Missing Link - a non-profit organisation working with the National Center For Missing and Exploited Children.
Chief Williams, who took office eight months ago said he wants answers, just like the families who have waited 18 years.
He added: 'We'll always hold out hope we'll find them but as years go by, the prospects certainly dim.
'We're looking at some reviewing some cases that haven't been done before. Probably a more open discussion about what leads are. Let's follow them or put them to rest.'
Anyone who has information is asked to call 417-864-1810.