Afghan notebook: A voice silenced --- Journalists in Afghanistan have held a candlelight vigil in memory of Sardar Ahmad, the senior reporter for Agence France-Presse, who was killed in a Taliban attack on 20 March. -- An experienced and popular journalist, Mr Ahmad was gunned down along with his wife and two of his young children at the Serena Hotel in Kabul. The BBC's Harun Najafizada remembers a colleague and friend. -- I first met Sardar Ahmad in 2003 in the early days of the new Afghanistan. -- It was a time of hope. The Taliban had gone, a new government was in place and our country seemed to be at the centre of the world's attention --- They also shot his younger son Abozar at least three times, but he survived and is now recovering to keep Sardar's name alive. -- As details of the attack emerged later, Afghan officials said they did not believe Sardar was the target. He was just in the wrong place at the wrong time. -- We began to worry when the usually regular tweets from Pressistan, the local news agency he founded, suddenly stopped. -- We all wondered why Sardar was silent when such a big news story was happening in our city. -- The next morning we found out that he had been silenced forever. --- For many of us journalists in Kabul, Sardar's death has suddenly brought home the grim reality of the relentless violence in our country. -- It's given a human face to civilian casualties that we have been reporting on for more than a decade. -- It's one tragedy against the background of so many all across Afghanistan. But it's left everyone - not just the media community, feeling deeply shocked. -- We will all miss Sardar very much. - More, Harun Najafizada, BBC Persian, at: http://www.bbc.com/news/world-asia-26754382