Authorities say a 15-year-old boy faces 2 counts of murder in the Christmas night slayings of two Newark children. […] The juvenile was apprehended in connection with the fatal shootings of a 13-year-old girl and a 15-year-old boy outside a home in the southern end of Newark near Interstate 78. […] Newark will end 2013 with more than 100 murders, the most the city has had since 2006. …