Avtar and Carole Kolar: Police granted more time to quiz suspect
Detectives investigating the murder of the parents of a police officer have been granted extra time to question a third man over their deaths.
Carole, 58, and Avtar Kolar, 62, were found dead at their home in Handsworth Wood, Birmingham, last Wednesday.
Officers will have a further 36 hours to question a 37-year-old man who was arrested at an address in Birmingham just after 13:00 GMT on Monday.
He is the third person to be arrested on suspicion of the double murder.
A 41-year-old man questioned at the weekend was released without charge, and a 24-year-old man arrested on Friday is on police bail.
Mr and Mrs Kolar, who had been married for 40 years, were found at the Friary Road property by their son Jason, who is a West Midlands Police officer.
Post-mortem examinations revealed both died as a result of blunt-force trauma to the head, each sustaining a number of blows.
A police spokeswoman said: "Specialist forensic investigators remain at the address carrying out thorough examinations and detectives and local neighbourhood officers continue to conduct local inquiries."
Detectives have said they are looking into a number of lines of inquiry, including a rise in burglaries and gold thefts in the area.
Det Supt Richard Baker, who is leading a team of more than 60 officers assigned to the case, has said a possible link between Jason Kolar's position with the force and his parents' death was "not a significant line of inquiry".
Crimestoppers said the double murder was a "vile crime" and has put up a £10,000 reward for information leading to the arrest and conviction of those responsible.