Utsav Sharma, 30, told police that the judicial process was lengthy and he had no faith in the system, so he attacked Aarushi Talwar's father.
The man who attacked murdered teenager Aarushi Talwar's father Rajesh Talwar outside a court in Ghaziabad today told police that he was upset that Talwar was not being convicted despite "sufficient evidence" against him.
Utsav Sharma, 30, told police that the judicial process was lengthy and he had no faith in the system, so he attacked Talwar.
The butcher's knife used by Sharma to attack Talwar was bought by him from Chandni Chowk in Delhi for Rs250 a day earlier, police said.
The young man's father is a professor in the mechanical engineering department of Benaras Hindu University.
He came to Delhi on January 20 and moved into a guest house in the Lal Bahadur Shastri Vidyapeeth in the Qutub Institutional Area in South Delhi. The room was booked by his father, police said.
The animation and film designer, who was slapped with a charge of attempt to murder and booked under the National Security Act (NSA) for attacking Talwar, told police that he took a bus from Delhi to Ghaziabad and reached the court complex in the morning "to execute his plans".
Sharma, whose mother Indira is a psychology teacher, told investigators that he came to Delhi in connection with the International Indian Art Summit held at Pragati Maidan.
He told police that he completed his post-graduate degree in animation and film design from the National Institute of Design (NID) in Ahmedabad in Gujarat.
Sharma attacked Talwar when he was walking out of court after filing a protest petition against the Central Bureau of Investigation's closure report on the case of his 14-year-old daughter, who was found murdered in mysterious circumstances in their Jalvayu Vihar apartment in NOIDA on May 16, 2008.
Their domestic help Hemraj was initially suspected of the killing, but his body was found on the terrace of the house a day later.
Sharma had earlier attacked Haryana's tainted former police chief SPS Rathore in February 2010.
Sharma's father said in Varanasi that his son "should not be treated as a criminal, considering his mental condition" and that he would now "prefer keeping him in confinement".
Senior superintendent of police, Ghaziabad, Raghuvir Lal said that during interrogation Utsav Sharma seemed to be mentally sound.
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