Boston Marathon memorial taking shape

BOSTON -- A memorial to victims of the 2013 Boston Marathon bombings is taking shape.

Four bronze spires that will make up part of a memorial to the victims of the bombings have been put in place near the finish line.

The spires, ranging in height from about 17 feet to 21 feet, will serve as light poles for the memorial. They were installed Wednesday at one of the two locations where pressure cooker bombs detonated on April 15, 2013, killing three people and wounding more than 260 others.

Memorials will eventually stand at both sites and will also honor two police officers who died after the attacks.

Planning began four years ago for the $2 million memorial, which has undergone substantial redesign.

Three spectators were killed and more than 260 others were wounded in the April 15, 2013, attacks, and an MIT police officer later was fatally shot by the bombers as they tried to steal his gun.

Artist Pablo Eduardo has said it's important to meet the hopes and expectations of families who lost loved ones.