Saturday, April 12
(Boston, MA) -- Heavy security will be in place leading up to this year's Boston Marathon. Speaking at a news conference at city hall Saturday, Police Commissioner William Evans said new checkpoints are being added on Boylston Street along with more uniformed and undercover officers. Scores of security cameras will also help monitor the huge crowds that are expected for the 118th Boston Marathon. Tuesday marks the one year anniversary of deadly bombing that killed three people and injured more than 250. This year, the marathon will take place on April 21st.