Dale Cregan lured two female police officers to their deaths by reporting a bogus burglary, a jury has heard today.
The prosecution at Preston Crown Court said Creegan then lay in wait and shot PCs Nicola Hughes and Fiona Bone repeatedly when they arrived before throwing a grenade towards the victims.
ITV News' North of England Correspondent Martin Geissler reports on the first day of the trial, which was attended by the families of both officers.
More top news
There will be heavy showers on Saturday though sunshine will be enjoyed by many across the UK before a similar outlook on Sunday.
It's Prince George's fourth birthday ... but how much do you actually know about the young royal? Here's your chance to find out!
A new system will allow authorities to track private drones as research finds the heavier flying gadgets could smash plane windscreens.