New York prosecutors have filed murder and other charges against Luigi Nicholas Mangione in the killing of UnitedHealthcare's CEO, according to an online court docket.

Queensland police have charged a man who they will allege made online threats towards a Jewish community centre in Victoria.

Opposition Leader Peter Dutton will need to significantly reshuffle his frontbench following the retirements of leading Liberal moderates Paul Fletcher and Simon Birmingham.

The new rules include stiff penalties for the inhumane treatment of sharks and rays, including the eagle rays that frequently visit Adelaide beaches, while fishing bans will be in effect for other species.

The 26-year-old Maryland man was arrested with a gun believed to be the one used in the killing and writings suggesting his anger with corporate America.