Jay Whiston death: Four bailed in Colchester house party probe
Four people arrested in connection with the death of a teenager in Essex have been bailed by police.
Jay Whiston was stabbed outside a house party in Marlowe Way, Colchester, on 8 September.
The 17-year-old from Aster Close in Clacton died a short time later in hospital from a stab wound.
Two men, aged 18 and 51, a 42-year-old woman and a girl, 17, arrested on Thursday have been bailed until 19 December.
They were arrested at a house in the Colchester area.
It is understood the girl is from Clacton and the other three are from the Colchester area.
Det Ch Insp Simon Parkes from Essex Police said: "We remain convinced that there are people who have yet to contact us, who know what happened and are protecting those responsible.
"It is those people we would appeal to come forward."
Five people from Colchester remain on police bail until 22 November.