Murderers jailed for more than 40 years
During the trial jurors heard how Mason had been in a relationship with both Mr Preston and Bashir at the time of the attack on August 21.
Prosecutors said Mason and Bashir had plotted to kill Mr Preston because he was an “annoyance” to their relationship.
Det Chief Insp Steve Handley, the senior investigating officer, said: “After hearing 11 weeks of extensive evidence, the jury reached an important distinction between the actions of the adults and the juveniles in this case.
“The jury determined that Bashir and Mason executed a plan to murder Mr Preston, resulting in their significant