Police suspected serial killer Ivan Milat of being behind 16 unsolved murders dating back to 1971, according to a government letter reported by both outlets.

The letter indicates that investigators linked Milat to killings from years earlier than the cases most commonly associated with his later conviction. The outlets describe the document as evidence of earlier police suspicion, though they do not agree on any additional details beyond the broad timeframe and the number of unsolved murders referenced.

PerthNow and The West Australian both report the same core claim: that internal government documentation reflects that police concerns about Milat’s possible involvement begin at least by 1971 and extend across 16 unresolved cases. Neither source provides differing interpretations of the letter’s significance in the material provided here, but both treat it as a new disclosure about the timeline of suspicion.