Sergei has not been able to overcome the trauma of the loss of his made and his sister, drowned in a river while they were boating with him and his father.Sergei has not been able to overcome the trauma of the loss of his made and his sister, drowned in a river while they were boating with him and his father.Sergei has not been able to overcome the trauma of the loss of his made and his sister, drowned in a river while they were boating with him and his father.