Police are hunting a man wanted in relation to the Costco killing case.
Michael Mc Inerney, 32, of no fixed abode, had been due to answer bail in connection with the death of Prasanna ‘Nick’ Arulchelvam.
The father-of-one was found fatally injured with a fractured skull in the car park of the outlet store in Hartspring Lane, Bushey, in May.
The 34-year-old died in hospital in London weeks later.
Detective Chief Inspector Ruth Dodsworth, from the Hertfordshire major crime unit, said: "Michael Mc Inerney has failed to answer his bail for an extremely serious offence. I am urging anyone who may know of his whereabouts to contact police immediately on 999. Michael, if you see or hear this appeal, we will find you and it is in your best interests to hand yourself in."