New Delhi, June 18 (IANS) A week after a senior journalist was gunned down in Mumbai, social activist Anna Hazare Saturday wrote a letter to Prime Minister Manmohan Singh to demand a strong law to prevent any repetition of the incident.

 
 "Such deadly attacks on journalists are not a good sign for democracy. This is an attack on democracy and a tough law needs to be implemented by the central government to check any such instances involving journalists in the future," Hazare told a news channel.
 
 "Therefore, I have written a letter to Prime Minister Manmohan Singh regarding the same issue," he added.
 
 Jyotirmoy Dey, editor (special investigations) at Mid Day, was shot dead June 11 by four unidentified motorcycle-borne assailants near his residence Saturday afternoon, sending shockwaves through the city's media circles.