Left to right: Shah, Oppong, and Adeyinka
Robert Powell, 50, was shot multiple times outside an address in Water Lane in Roydon on Saturday, 13 June.
Police now say they are keen to speak to Israar Shah, 36, from Brentwood, who has links to Romford and other parts of east London.
They also want to locate Nana Oppong, 40, from Stratford and Temitope Adeyinka, 36, and also from Stratford.
Detective Chief Inspector Stephen Jennings, who is leading the investigation, said: “I would strongly urge Nana Oppong, Israar Shah and Temitope Adeyinka to contact police and hand themselves in.
“Members of the public who see any of these men are asked not to approach them and call 999 immediately.
“We have a team of people dedicated to this investigation, working extremely hard around the clock to find the person or people responsible for Robert’s death.
“Speaking to Oppong, Shah and Adeyinka is a significant part of our investigation and we need them, or anyone with information about where they are, to get in contact with us.
“Anybody who is found to be assisting these men in any way will be subject to a thorough investigation and could find themselves prosecuted for assisting an offender.”
Shah, who also goes by the name of Slick, is 6ft 1ins tall, of a slim build, and is known to have links to Romford and east London.
Oppong, who is also known as Enz is 5ft 6ins tall, of a proportionate build, and has links to east London.
Adeyinka, also known as Limo, is 5ft 8ins and of a medium build. He has links to areas in east London, in particular Stratford and Bow.
If you have information on the whereabouts of Nana Oppong, Israar Shah, and Temitope Adeyinka, call Essex Police immediately on 999.
Alternatively, contact independent crime-fighting charity Crimestoppers completely anonymously on 0800 555 111 or www.crimestoppers-uk.org.
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