The 30-year-old also admitted to finding help from the internet in committing the murders and practising the act using a dummy. The police had earlier recovered a burnt dummy, which Cadell used to fake his death, from the house.


Cadell is the sole suspect in the Nanthancode killings, where four members of a family including an elderly couple, were murdered at their residence in the heart of Thiruvananthapuram city.


The accused told the police that his father used to get intoxicated at night and engaged in lewd conversations with some women over the phone, and that though he asked his mother to intervene, she didn't bother to stop him.


Cadell said that was the reason behind his decision to murder his parents, adding that he killed his younger sister and visually challenged aunt as he felt they would be alone and helpless without the parents.