The accused, identified as Karan Valecha (26) is a class 12 drop out. He worked with his father, who had a jewellery designing shop. In 2010, he got a job in Bangkok and since then was living there and met the other two accused, who are on the run, they said.
The sensational incident had taken place in the famous bullion market of Dariba Kalan at around 9 PM yesterday.
"Three armed robbers barged into the shop of one Kanhaiya Lal, located at first floor, where he along with his sons was preparing to wind up for the day. The robbers tried to loot the cash and jewellery, but Lal and his sons resisted," said Pillai.
A PCR call was received at 9:15 PM, she said, adding the victim was immediately shifted to Sushruta Trauma centre, where he was declared as brought dead.
In the melee, the attackers left a bag on the spot which provided crucial information about them.
It came to light that they had conducted thorough reece before committing robbery and had stayed in a hotel in Paharganj area for the night.
"It also came to light that the gang had also reeced Karol Bagh and Lal Quarters but zeroed in on to target Lal's shop. Knowing that they can be tracked through technical surveillance, the gang never used mobile phones and borrow phones from random people to make calls," said Pillai.
He used to come to India to commit crimes off and on. As he had worked in the area of Dariba Kalan 6-7 years back, he had good knowledge of the topography which helped him plan and execute it well, police said.
"Arrest of Valecha in less than 24 hours of the incident has helped in restoring the faith of people in the security of the area. Several teams of North District are on the hunt to catch the remaining two accused at the earliest," said Pillai.
