Global media paid Boko Haram little attention until 200 girls were abducted , says Shehu Sani . This second round of dialogue took place in the last quarter of 2012 . Boko Haram became more violent after its founder was killed in 2009 , he says . At talks in 2011 , the group blamed government officials for their deaths , he says . He says the use of violence to free hostages can be deadly and negotiations must be held .
Global media paid Boko Haram little attention until 200 girls were abducted , says Shehu Sani . Boko Haram became more violent after its founder was killed in 2009 , he says . At talks in 2011 , the group blamed government officials for their deaths , he says . He says the use of violence to free hostages can be deadly and negotiations must be held .