Two suspects were arrested yesterday for their role in the shooting rampage in Tulsa, Oklahoma. Officials say that revenge may have been a motivation for the killings.  In other headlines: reports that the proposed cease-fire in Syria is unravelling; North Korea appears to be on-track to launching a long-range missile; possible link reported between obesity in pregnant woman and autism in her child; and "The Hunger Games" wins the box office war over "American Reunion" and "Titanic" in 3D.