By Benedict Tetzlaff-Deas Top Russian officials have urged Vladimir Putin to “punish” the perpetrators of the deadly terrorist attack in Moscow. Friday night’s attack on Crocus City Hall on the western outskirts of the capital left 139 people dead and more than 180 injured, making it the deadliest to hit Russia in years. A total of 97 people remained in hospital on Monday, officials said. Russia’s Prime Minister Mikhail Mishustin said an investigation is still ongoing, but vowed that “the perpetrators will be punished, they do not deserve mercy.” Former President Dmitry Medvedev, now deputy he…