Detective Chief Inspector Rob Griffin, from the East Midlands Major Crime Unit, has told ITV News Central Susan and Christopher Edwards displayed a heartless attitude from the moment they were arrested.
More top news
Generally dry with sunny spells, although there is a chance of isolated afternoon showers.
Any showers will die away during the evening, leaving a dry night with some clear periods.
Scattered showers around at first this evening will soon move away, as dry and clearer conditions arrive from the northwest.