here. it s bizarre how the new reality is taking grip here quite so fast and quite absent the ukrainian government here. nick paton walsh, thank you so much. we will check back in with you. let s get over to christine romans for the top stories. a disturbing scare in boston on the anniversary of the marathon bombings. ples arrested a 25-year-old man carrying a backpack containing a rice cooker. you may recall pressure cooker bombs killed three, injured more than 260 last april. the backpack was detonated as a precautionary measure. police say it did not contain a bomb. a second unattended bag also sparked a scare. it was destroyed and cleared. it belonged to an unnamed media outlet. defense expert is testifying right now in the oscar pistorius murder trial disputing a pathologist findings about wounds reeva steencamp sustained. the olympian says it was an accident but he mistook his