As authorities combed through the home of Gilgo Beach serial murder suspect Rex Heuermann, sources told CNN Monday that the 59-year-old had just one chilling question as he was processed for intake at jail after his arrest last week: “Is it in the news?” Since his arrival in jail, Heuermann has been placed on suicide watch, a spokesperson with the Suffolk County Sheriff’s Office told CNN, though she noted this was not uncommon in cases such as this. Heuermann’s home was searched Sunday as part of an investigation into the decade-old killings of at least three women whose remains were found alongside several other bodies in marshes near Gilgo Beach in New York. A source told CNN that items that could be souvenirs from the killings are high priorities of the search. Officials recovered 200 to 300 guns locked away in a walled-off metal vault in the home. “He had an arsenal in a vault that he had downstairs,” Suffolk County Police Commissioner Rodney Harrison told Fox News. Heuermann is said to be an avid duck hunter and had permits for a whopping 92 firearms, but it’s unclear whether all of the recovered weapons were obtained legally.