Interestingly, that only comes from a bullet point summary but is not mentioned or quoted specifically in the story itself. The story is written from a statement issued to the media. The only quote from the statement in the story that mentions suspects is ...
Police have been playing coy already today with what they said about the search. You don't get a search warrant to search a home because it is "standard procedure" in missing persons cases. You have to go before a judge and attest to information that a reasonable person would evaluate as being more likely than not that a crime occurred and evidence related to such a crime will be found where law enforcement would like to search. Obtaining a search warrant in a missing persons case with no evidence of a crime is difficult because adults are free to go wherever they want, whenever they want, without telling anyone where they are and judges don't just hand out search warrants in missing persons cases as "standard procedure".
Not sure why the police are doing this. They end up creating a problem in their community where the community members are left to determine on their own whether or not there is some random stranger randomly selecting victims and they are roaming the community right now.