Police investigating JonBenet Ramsey's slaying believed the killer might have watched or broken into the family's vacation home here, according to an affidavit made public Thursday.
At the request of the media, a judge released an affidavit and warrant from a Jan. 5 search of the two-story, Victorian-style lakefront house where the Ramseys have spent their summers for five years.
District Judge Richard W. May delayed a ruling on a request by the Denver Post and Denver television station KMGH to release documents from a second search of the home March 6.
Police sought to search the house to determine whether the person who killed the 6-year-old in her Boulder, Colo., home last December had studied the family's movements by phoning or sending mail to the Charlevoix house.
Investigators also sought mail or other papers that might contain threats and evidence indicating a break-in or surveillance.
The affidavit used to acquire the warrant was filed by Boulder police Detective Jane Harmer and said "there may be evidence that the Charlevoix home may have been watched by the perpetrators," who may have called or sent letters there to "monitor the comings and goings of the Ramsey family."
Harmer she "believes that the security of the Charlevoix home may have been compromised by the perpetrators." She did not elaborate.
JonBenet was found beaten and strangled in the basement of her Boulder home Dec. 26, 1996, about eight hours after her mother reported her missing. No arrests have been made.