Were the murders of Vijayaben Chauhan, 58, and her daughter Jigisha, 33, a heat of the moment murder or was it pre-planned.Police believe that the double murder committed by Vijayaben's son Rikesh, who later hung himself at the Chauhan residence in sector 30 at Gandhinagar, was pre-planned. "The double murder is rooted in a property dispute. The dispute between the mother-daughter and Rikesh was common knowledge. It is quite possible that Rikesh had pre-planned the murder," said police sources. Rikesh had also left behind a suicide note saying that he could not control his anger and was responsible for the double murder. There was no remorse in his suicide note, said police official. Cops believe that the suicide note is a pointer to the fact that the double murder was pre-planned. "We believe that the suicide note, lying nearby Rikesh's body in the master bedroom on ground floor was written before the incident as it does not bear blood spots. In fact, both Rikesh's hands were soaked in blood after the murders. The knife used was also lying beside the body," said JH Algotar, inspector of sector 21 police station. When the incident took place on Saturday morning, there were rumours among the investigators that there was a woman — most probably Diwaliben, Rikesh's maternal grandmother — present at the Chauhan residence soon after the incident took place as she also had a cut on her wrist. However, officials later rubbished the claims and indicated towards the chip of wood that had to be extracted in order to open the door. "It's an open and shut case. Everything became clear after Tejal, Rikesh's wife, recounted various incidents where he confronted his mother over property disputes. They were killed in order to not let them take over. It was the first double murder registered with city police stations," added Algotar.