Nicholas Mazzei-Saum

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In this photo made on Saturday, March 1, 2014, a plaque and bouquets of artificial flowers decorate the front porch of the Mazzei-Saum family in Clarksburg, W. Va. In March of 2013, a truck carrying drilling water overturned onto a car driven by Lucretia Mazzei, killing her two sons, 7-year-old Nicholas Mazzei-Saum and his 8-year-old brother Alexander Mazzei-Saum. An analysis of traffic fatalities in the busiest new oil and gas-producing counties in the U.S. shows a sharp rise in deaths that experts say is related to the drilling boom. (AP Photo/Keith Srakocic)