Krystle Campbell Id'd as Second Boston Marathon victim

A second victim in the Boston Marathon bombings has been identified: Krystle M. Campbell, a 29-year-old from Medford, Mass.

Her father, William A. Campbell Jr., told Yahoo News he's in shock that his daughter was killed.

"My daughter was the most lovable girl. She helped everybody, and I'm just so shocked right now. We're just devastated," he said. "She was a wonderful, wonderful girl. Always willing to lend a hand."

Campbell was at the finish line with a friend to cheer on her boyfriend, who was running the race. William Campbell said he doesn't know if her boyfriend finished the race before the bombs went off.

More than 170 people were wounded—17 of them critically—and three were killed in the attacks.

The other identified victim, 8-year-old Martin Richard, was running away from the first explosion with his family when the second blast killed him. His mother and 6-year-old sister were injured in the blast as well.