The mayor of the Russian town of Sergiyev Posad -- popular with religious pilgrims and tourists -- was killed in a shooting on August 22.
Yevgeny Dushko died from gunshot injuries to his head and chest.
He had said that bringing criminal gangs in Sergiev Posad under control was a top priority for his administration.
He had been in office for only a few months.
Sergiyev Posad, about 70 kilometers northeast of Moscow, is the site of the Trinity Lavra of St Sergius monastery, which is considered one of the most sacred edifices of Russian Orthodox Christianity.
The Trinity Monastery dates back to the 12th century and is listed as a UNESCO world heritage site.
compiled from agency reports