Bengaluru, Aug. 2 -- When police arrested the suspects behind the shocking kidnap and murder of a 13 year old Bengaluru boy and began investigations, they were left puzzled by one pressing question: How did a simple driver manage to skillfully wield technology like virtual private networks (VPN) and voice over internet protocol (VoIP) to mask his tracks during the ransom call?

Cops believe Gurumurthy may have picked up these digital tricks from his brother, a police constable with experience in the Bengaluru City Police social media division, who is now posted at an embassy in the Middle East, The Times of India reported.

At first, police thought Gurumurthy was an experienced criminal; he hid behind a foreign phone number while calling ...