Kempston murder inquiry: Victim Serafettin Demirsay named
A man stabbed to death in his Bedfordshire home has been named as Turkish-born Serafettin Demirsay.
A 24-year-old man, arrested on suspicion of murder after the grandfather was killed in Vineyard Way, Kempston, has been bailed.
Officers want to speak to anyone who saw three men approaching the house on Tuesday evening.
A spokesman said: "While we have arrested a man, this enquiry is not solved."
Police said Mr Demirsay, who was aged in his 60s and was known as Sharif, was stabbed after three men forced their way into his home when he answered a knock at the door.
His 68-year-old partner sustained superficial knife wounds which were treated in hospital and some money and jewellery were also stolen.
The Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit said a motive for the attack was not clear.
It revealed the men "launched a violent attack" on the couple, before running away from the house.
Det Chief Insp Tim Redfearn said it was a "terribly distressing attack" and officers were "trying to piece together" what happened before the stabbing.
"What we do know is that three men were seen on CCTV approaching the house at about 21:30 BST, dressed in dark clothes and with hoods covering their faces," he said.
"We do want to hear from anyone else who can help with information about this incident."