Chandigarh, July 12 -- The police remand of Amit Kumar alias Sharabi, the alleged mastermind behind the Sector 11 chemist shop shooting, has ended, but Chandigarh police are yet to recover the imported Zigana pistol used in the murder or establish a clear motive behind the killing.

Kumar, who was arrested by Jammu Police, was brought to Chandigarh on police remand and interrogated along with the two alleged shooters, Sunny Mehra and Aryan Sharma, who had earlier been arrested from Jammu. Investigators, however, have failed to recover the pistol, having full-auto firing capability, that was used in the crime.

According to police officials, the accused had allegedly thrown the weapon into a forested area near the inter-state bus terminus ...