Mobile phone data and CCTV evidence was put before the jury at the Sonny Grey murder trial at Nottingham Crown Court today.
Sonny Grey died on October 31, 2011, at City Hospital in Nottingham after being attacked in his home on Westwick Gardens, Lincoln, two days earlier.
Rocky Curtis, 25, of Newbridge Lane, Wisbech and Robert Holmes, 24, of Redmoor Lane, Wisbech, deny his murder.
The jury was today shown several days worth of phone records belonging to the defendants Robert Holmes and Rocky Curtis, as well as Curtis' now deceased brother Tom and Dawn Matchett, an ex-partner of Sonny Grey.
Wesley Burton, an intelligence analyst for Lincolnshire Police, explained graphs and charts to the court.
Peter Joyce QC, prosecuting, said: "On October 29, we have all three phones in Wisbech between 11.30am and 12.20.
"Over the course of the month, there is lots of activity between 2pm and 7pm but on October 29 there is a lack of use of these phones."
However, during cross examination, Timothy Spencer QC identified periods of activity on Curtis' phone during the alleged time of the attack.
"This is not a case of Rocky Curtis' phone being inactive and then suddenly active again on the day in question," he said.
"The phone belonging to Rocky Curtis did not cease usage on that day."
The jury also heard evidence from three police officers who identified the two defendants and Tom Curtis on CCTV images captured at Winthorpe service station on October 29, 2011.
The prosecution alleges the footage shows they were in the Volkswagen Touareg which they say was seen in the area around Sonny Grey's home at the time of the attack.
DC Simon Rust has worked for Cambridgeshire Police in Wisbech since 1996 and told the court he has had contact with Rocky Curtis on several occasions.
He told the court he was able to identify Curtis because of this.
The court also heard from DC Nicholas Cobb and DC Mark Croft of Lincolnshire Police.
They had both interviewed Tom Curtis, who has since died, and his brother Rocky for several hours on a number of occasions.
They had been provided with CCTV images from Winthorpe service station prior to an interview with Rocky Curtis on April 30 and asked to see if they could identify any of the men.
Both officers identified the Curtis brothers in the pictures and said there was no doubt in their minds that their identifications were correct.
However Mr Spencer said: "The only thing that had changed by April 30 when Curtis was due to return to the police station was the arrival of the pictures from Winthorpe.
"Had it not been Rocky Curtis on those pictures the state of the evidence would have been the same.
"Could this have raised an expectation on you?"
There was no dispute over the identification of Holmes on the CCTV.
The trial continues.