FBI agents will reportedly help British cops uncover the true motives behind Axel Rudakubana's horrifying Southport murders. Axel Rudakubana, 18, was jailed for a minimum of 52 years in January after murdering three girls at a Taylor Swift-themed class in the Merseyside town in July last year when he was aged 17. He killed Alice da Silva Aguiar, nine, Bebe King, six, and Elsie Dot Stancombe, seven, and attempted to murder eight other children, who cannot be named for legal reasons, along with class instructor Leanne Lucas and businessman John Hayes. Merseyside Police have struggled to recover potentially vital internet history contained on Rudakubana's personal devices which would show what websites he was accessing in the run-up to the attacks, as he purposefully wiped the data. Last month, the force admitted it could "take years" for British investigators to retrieve the information, as the relevant data is held on internet servers hosted in the US. But it is now hoped that new light could be shone on how the shut-in teenager came to be a twisted killer after the FBI and US Justice Department agreed to help access the records. Previously unseen search histories on Google Chrome and Microsoft Bing could reportedly be turned over in just a matter of weeks. According to The Sun, the Crown Prosecution Service and Merseyside Police said in a joint statement: "A specialist liaison CPS prosecutor in the United States has been working with international partners to obtain material. We are thankful to the US Department of Justice and the FBI for their ongoing assistance." Police and prosecutors were unable to pinpoint an exact motive during Rudakubana's trial, though he was found to have watched graphic footage of a knife attack in Australia, and downloaded an academic study of an Al-Qaeda training manual. Neighbours who knew his family in Southport described the teen as "clingy" and "introverted". Rudakubana's sentence - life with a minimum of 52 years - sparked some criticism from victims' families, campaigners, and MPs, with some arguing that the law should be changed so that people can be handed whole life orders for crimes committed under the age of 18. But on Friday, Attorney General Lord Hermer KC said he would not be referring the sentence to the Court of Appeal under the unduly lenient sentence scheme. The Attorney General said: "No-one would want the families to be put through an unnecessary further court process where there is no realistic legal basis for an increased sentence. The 52-year sentence imposed by the judge was the second longest sentence imposed by the courts in English history. "Rudakubana will likely never be released and will spend the rest of his life in jail. The Government have set out the next steps that must now take place to ensure that these awful murders will be a line in the sand."