I think Claroon may be referring to this:
" "Everyone we have talked to has been co-operative but there's a difference between being co-operative and telling the truth," she says.
Detectives continue working the case and receive occasional tips from the public.
They followed-up on a Crime Stoppers tip recently, and also on an anonymous and cryptic letter mailed to a Hamilton Spectator reporter that pointed the finger at two alleged suspects. Neither tip panned out.
Stewart says they have monitored information and theories on crime sleuthing social media websites. Most of it is far-fetched, but sometimes it's useful. "
https://www.thespec.com/news-story/5809219-who-killed-audrey-gleave-/
Further to the above.... sounds like someone who is 'appearing' to be 'cooperative', may be felt to be not telling the truth? Hmm