In January 2008, Russian scientists said that the remains of a young boy and woman found near Yekaterinburg in August 2007 might be the missing bodies. On 30 April 2008, Russian scientists used DNA testing to prove that they were the Tsarevich Alexei and his sister. In March 2009, the last results of the DNA testing were published by Dr. Michael Coble of the US Armed Forces DNA Identification Laboratory. This proved that all four Grand Duchesses were murdered.