More than 140 mass shootings have happened in the US this year so far with at least three taking place this weekend. Russia is attacking cities all over Ukraine, from the west to the east. A US-North Korea diplomat is calling for Pyongyang to pursue diplomacy after it conducted its 12th weapons test of the year on Saturday. Sweden dealt with violence this weekend after a far-right group organized Quran burnings in the country. The Boston Marathon is back – we'll tell you who won in some races. To learn more about how CNN protects listener privacy, visit cnn.com/privacy