Brutal killers Kenneth Burgess and Dennis Robinson have been found guilty of murdering the Cooper twins in a savage baseball bat attack.

A jury took just under seven hours to convict the pair for the brutal "vigilante" assault that sent blood spraying onto the walls of Burgess' Devonshire apartment.

Amid chaotic scenes last night, the twins' mother Rochelle Cooper was rushed out of the courtroom into a waiting ambulance minutes before the damning verdicts were delivered.

Burgess, who the trial heard launched the fatal beating in a revenge attack after his father was robbed, was unanimously convicted of murdering Jahmal and Jahmil Cooper.

Accomplice Robinson, who helped dump the brothers' bodies down Abbot's Cliff, was convicted 11-1 on both murder counts ? and the pair now face the prospect of double life jail sentences.

The verdict, which came in just before 6 p.m. last night and brings to an end an horrific crime that stunned the Island, was greeted with joy by family and friends of the 20-year-old twins.

Their sister Tameya Davis, speaking after the verdict, said: "Justice had been done. I want them both to get life."