Toronto police have identified a third suspect sought in the death of an American man who was fatally beaten while in town for a bachelor party.

Det. Rob North says Andrew Christopher O'Brien is wanted on a second-degree murder charge in the killing of 26-year-old Julian Jones.

He says O'Brien, 28, is known to police and has ties to east Toronto and other jurisdictions in the Toronto area.

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Investigators have said Jones was in Toronto from Maryland to celebrate a friend's upcoming wedding when he and his friends were approached by a group of men outside a bar looking for a fight.

They said Jones was separated from his friends and was allegedly attacked.

Two men — Kenneth Omorogbe, 25, and Kamari Folkes, 24 — have already been arrested and charged in the slaying.

North says detectives will be travelling to Maryland next week to speak to Jones' friends.