Police in Texas have charged a man with the murder of six children and two adults. <br /><br /> David Conley is accused of killing the victims, who ranged from six to fifty in age, at a house in north Houston during an incident that started late on Saturday night. <br /><br /> Conley was persuaded to surrender by negotiators before being arrested. <br /><br /> A police spokesman described the killings as a “senseless tragedy”.<br /><br /> Two of the victims were female and six were male.