A 28-year-old jilted man, who had tried to kill his colleague, was found hanging in an empty shed of an under-construction building in Hulimavu on Sunday.
He was a garment factory employee and had fallen in love with his co-worker Puja, also from Madhya Pradesh. Puja had turned down his proposal, according to the police.
On Saturday, he went to the paying guest where she was residing and again asked her to marry him.
Police said that, when she tried to ignore him and asked him to leave, he stabbed her in the neck and fled the scene. The warden of the paying guest rushed her to a private hospital and alerted the police.
The body has been sent for post-mortem and a case of unnatural death has been registered. Further investigations are on.