How change specific point style on one LineSeries?

            DataTable table = new DataTable();
            table.Columns.Add("Value", typeof(double));
            table.Columns.Add("Name", typeof(string));
            table.Rows.Add(1, "John");
            table.Rows.Add(13, "Adam");
            table.Rows.Add(5, "Peter");
            table.Rows.Add(12, "Sam");
            table.Rows.Add(6, "Paul");

            LineSeries lineSeria = new LineSeries();
            radChartView1.Series.Add(lineSeria);
            lineSeria.ValueMember = "Value";
            lineSeria.CategoryMember = "Name";
            lineSeria.DataSource = table;
            lineSeria.PointSize = new SizeF(8, 8);
            lineSeria.BorderColor = Color.Red;
            lineSeria.BorderWidth = 1;

            foreach (CartesianLinePointElement pointElement in lineSeria.Children)
            {
                CategoricalDataPoint dataPoint = pointElement.DataPoint as CategoricalDataPoint;
                if (dataPoint.Value > 10) 
                {
                    pointElement.BackColor = Color.Aqua;
                }
            }