Police in England have charged 29-year-old Dale Cregan with the murders of two police officers in a gun and grenade attack.
Mr Cregan is also accused of killing father and son David and Mark Short in separate incidents earlier this year.
In addition, Mr Cregan faces three charges of attempted murder.
Police constables Nicola Hughes and Fiona Bone were killed during a bogus burglary call in Hattersley, Greater Manchester, on Tuesday.
Nazir Afzal, Chief Crown Prosecutor for CPS North West, said: "I have today authorised the police to charge 29-year-old Dale Cregan with their murders and with the murders of Mark Short, who was killed at the Cotton Tree Inn in Droylsden on 25 May, and David Short, who was killed at his home in Clayton on 10 August.
"Cregan has also been charged with the attempted murders of Michael Belcher, Ryan Pridding and John Short on 25 May and Sharon Hark on 10 August.
"He will appear in custody at Manchester City Magistrates' Court tomorrow.”
