A schizophrenic who helped beat a man to death has been detained indefinitely under the Mental Health Act.
Mr Geddes was attacked with "appalling savagery"
Nabeel Aljubori was found guilty of manslaughter after he and Derek Dale attacked Paul Geddes in Plumstead, south-east London, last June.
Aljubori was sentenced at Southwark Crown Court on Tuesday. Dale, 18, was jailed for murder in January.
The Old Bailey heard the pair attacked Mr Geddes with "appalling savagery". after breaking into his home.
Judge Peter Fingret said: "This was a particularly brutal and callous killing of a mild and inoffensive young man.
"You and your co-defendant beat him to death, in the course of which one of his ears was severed and attempt was made to do the same with the other.
The Old Bailey trial heard how the pair had embarked on a night-long burglary rampage in June 2003 to find money for drugs when they killed Mr Geddes.
Later that day they returned to his home, doused his body with petrol and then set light to him and his flat in a bid to destroy the evidence.
Dr Callum Ross said Aljubori had all the hallmarks of hebephrenic schizophrenia, including delusions, hallucinations and unpredictability, and posed a risk to the public.
Dale and Aljubori, both from the Plumstead area, had denied murder.