Police are continuing their hunt for a man wanted for questioning over the murders of a father and son.
Detectives are searching for Dale Cregan, 29, after two gun and grenade attacks in Manchester on Friday which left 46-year-old David Short dead.
Cregan, from Droylsden, Tameside, is also wanted in connection with the murder of Mr Short's son, Mark, 23, earlier this year .
After his son was murdered, David Short and his family released a statement saying he had been "taken away from us by cowards".
His body was found on Friday when police responded to reports of gunfire at an address in Folkestone Road East, Clayton, at around 10.30am. A post-mortem examination to establish the cause of his death is due to take place later.
Greater Manchester Police said an explosion which also took place at the house was caused by a grenade.
Nine minutes later the force received reports that shots had been fired at a second property, on Luke Road, Droylsden, where detectives say there was also a grenade blast. Nobody was injured in this incident.
Armed police patrols were deployed to the areas in response to the incidents. Assistant Chief Constable Garry Shewan said the high visibility policing operation will continue.
He also warned members of the public not to approach Cregan who has a false eye, but to contact officers if any sightings are made.
Mr Shewan said: "These two extreme acts of violence that were carried out yesterday are highly unusual for the Greater Manchester area and clearly, are not something we will tolerate.
"Our main priority at the moment is to find Dale Cregan, so we can speak to him about these incidents. If you have seen him, or if you have any information about his whereabouts, please do not approach him but call the police immediately."
Father-of-one Mark Short, an amateur boxer, was shot in the neck at the Cotton Tree Pub in Droylsden on May 25 after a gunman walked in and opened fire. Three other men were also shot in the pub and received leg and back injuries.
A 31-year-old man was taken into custody today after being arrested at a hospital earlier this week in connection with his murder.
The man, who was arrested at Wythenshawe Hospital on Wednesday, will now be questioned by detectives on suspicion of one count of murder and three counts of attempted murder.
Luke Livesey, 27, from Hattersley and Damien Gorman, 38, from Glossop, were charged with Mark Short's murder and three counts of attempted murder on Wednesday.