Residents of Lampedusa held a candlelit vigil on Friday night in memory of more than 110 African migrants who died when their boat caught fire and capsized off the coast of the small Italian island.
Bad weather has hampered the search for missing bodies. In one of the worst disasters of Europe's immigration crisis, the death toll from the shipwreck is thought to be over 300.
The boat's passengers were mostly migrants from Eritrea and Somalia.
More top news
Police believe it is a "distinct possibility" that Halliwell was a serial killer, beyond the two murders he was convicted for.
The bodies were seen lined up in white and black body bags along Libya's western shoreline in stark and grim images released by aid workers.
Heterosexual couple Rebecca Steinfeld and Charles Keidan have lost their appeal to enter into a civil partnership.