‘I know it would be a big help': Stepfather of missing children shares details of polygraph test

CTV News

12-06-2025

The stepfather of the missing Nova Scotia kids Lilly and Jack Sullivan says he volunteered for a polygraph as part of the investigation.
Six-year-old Lilly Sullivan and four-year-old Jack Sullivan were last seen the morning of May 2 at their home on Gairloch Road in Lansdowne Station, N.S.
Since then, investigators say they've chased down every lead.
The RCMP says the investigation is still active and confirms officers have interviewed 30 people, conducted polygraph tests and received close to 500 tips – but there is still no sign of the siblings.
Polygraph test
The children's stepfather Daniel Martell says he was the first to volunteer for a polygraph.
'I know it would be a big help in the case and kind of narrow down maybe some of the speculations and just provide more evidence,' said Martell.
RCMP Cpl. Guillaume Tremblay told reporters Wednesday afternoon 'the truth verification unit is engaged.'
'There's multiple facets to those investigations and those experts are examining every question and answer that those individuals are providing and it could guide the investigation.'
Police have not said how many tests were administered, who took the tests, or what the results were.
Stepfather of missing NS kids speaks out
During the polygraph test, Martell says he was asked whether or not he was involved in the disappearance of the children. He adds his cellphone, and that of his estranged wife, was confiscated and searched by investigators.
Chris Lewis, CTV's policing expert and a former polygraph examiner for the Ontario Provincial Police, says it's significant the RCMP has administered polygraph tests.
'You don't do polygraph tests and waste that resource on people that maybe just saw something or heard something or is a real remote suspect. That's not the way it works,' Lewis told CTV News Wednesday.
'If they are doing polygraph tests and examinations on people, those are people they suspect might be involved in some way or for whatever reason aren't being honest.'
'I have nothing but time to just think'
At this point, there has been no major break in the case. Martell says the silence inside his once busy home is deafening.
'Going from a family of seven to just me, I have nothing but time to just think,' he said.
The emotional toll has left its mark on Martell, who has lost of custody of his daughter Meadow.
'I haven't even got to see my own kids, not even Meadow yet, but I'm still hopeful. I have supervised visits coming up with CPS,' said Martell.
The children's stepfather says he's grateful for the investigators and the people who continue to share tips. He adds the family remains hopeful the children will return home safe.
Four-year-old Jack Sullivan, left, and six-year-old Lilly Sullivan, right, seen in this handout photo, went missing on May 2, 2025 in the community of Lansdowne Station, N.S. THE CANADIAN PRESS/HO-Nova Scotia Ground Search and Rescue Association *MAN...
Four-year-old Jack Sullivan, left, and six-year-old Lilly Sullivan, right, seen in this handout photo, went missing on May 2, 2025 in the community of Lansdowne Station, N.S. THE CANADIAN PRESS/HO-Nova Scotia Ground Search and Rescue Association *MANDATORY CREDIT*
Police across Canada involved in investigation
Police say more than 11 Nova Scotia RCMP units are working on the case, along with the National Centre of Missing Persons, Canadian Centre for Child protection, and provincial and municipal police agencies across Nova Scotia and Canada.
Police say the information gathered during the investigation, including all ground search and rescue efforts, has not identified any new search areas at this time.
The RCMP first launched an extensive air and ground search for the siblings, which covered 5.5 square kilometres of heavily wooded and rural terrain, shortly after they were reported missing.
The search, which involved hundreds of people, dogs, drones, divers and helicopters, was scaled back five days later. Additional searches took place on May 8, 9, 17, 18, 31 and June 1.
In the latest search, 78 trained searchers from across the province focused on specific areas around Gairloch Road and a nearby pipeline where a boot print was previously found.
Anyone with information about the missing children is asked to call the Northeast Nova RCMP Major Crime Unit at 902-896-5060. To remain anonymous, contact Nova Scotia Crime Stoppers, toll-free, at 1-800-222-TIPS (8477).
For more Nova Scotia news, visit our dedicated provincial page