The 19-year-old boy arrested for allegedly raping and killing a nine-year-old girl in Nehru Nagar in June was confident the police would not be able to reach him.
He believed the person who committed the first two murders in the area would be held responsible for the third one too.
Police sources said the manner in which the accused allegedly lured the eight-year-old victim and later raped and murdered her resembled the pattern in the first two cases.
The officials added that all the three incidents occurred in the first week of months between February and June between 5.30 pm and 7 pm.
In all the three cases, there was not a single eyewitness who claimed to have seen the accused taking the girls away. In the first two cases, the girls’ bodies were found on building terraces while the third victim’s was found in a nearby shanty.
Medical tests done on all these victims revealed that they were raped.
“The accused was confident that he will never be caught and the blame will fall on the person involved in the first two cases,” said one of the police officers, who has questioned the accused.
The officer did not want to be identified because of the sensitivity of the case.
The accused in the first two cases is untraceable.
The investigation has also revealed that the accused was not aware about how DNA tests are done. Sources said he believed that a DNA test means matching the suspect’s blood group with that of the bloodstains found at the scene of crime.
Police sources said since there was no cut on his body the accused believed that his DNA will not match. “This was the reason he readily gave his blood sample for DNA tests and did not run away because he did not think he would be arrested,” the officer said.