A man has been arrested on suspicion of murdering Morden bookmaker Andrew Iacovou.
The 55-year-old father of three, from Sutton, was attacked by a lone male at about 10.30am while working at Ladbrokes in Aberconway Road, Morden on May 25.
A post-mortem gave cause of death as blunt trauma to the head.
Today a 21-year-old man was arrested on suspicion of his murder at an address in east London and is currently in custody at a south London police station.
Police continue to appeal for witnesses and information.
Anyone with information should call Sutton police 020 8721 4005; if you wish to remain anonymous call Crimestoppers on 0800 555 111.
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