Witnesses said the mangled bodies were in the backseat of their car after the 10.50 pm explosion on Thursday, and that both were partially undressed when they were removed from the vehicle.
It was also claimed that their relationship had become strained since the wife became the sole breadwinner. She worked as a lawmaker and also as a deputy general director of Diskus Plus company, one of Novosibirsk city's largest construction firms.
The car was parked close to the company's office when the couple were killed.
'There is a version that he held in his hands a kind of grenade, or a piece of TNT,' . The couple 'had a conflict' during which 'the explosives detonated, their faces are disfigured', it was claimed before police had a chance to make a forensic analysis of the vehicle or interview the couple's friends and colleagues.Neighbours who rushed to the scene said that when the bodies were removed, both the deputy and her husband were naked below the waist.
Another version studied by investigators is that the deputy's husband was the sole intended victim. 'We are checking all the versions, including this,' said a law enforcement source.