Krystle Campbell, a 29-year-old from Medford, Mass., has been identified as the second victim who lost her life in the Boston Marathon bombing.

This is a developing story

Campbell's father, William A. Campbell Jr., told Yahoo News, "My daughter was the most lovable girl. She helped everybody and I'm just so shocked right now. We're just devastated."

UPDATE: Campbell's parents were reportedly told their daughter was alive but found another woman in the intensive care unit at the hospital.

Hordon Health gym in Boston released a statement saying the company had "lost a member of its extended family," Inside Medford reports .

"Please take a moment to read Light a Candle, Say a Prayer for our loss," the statement said. "Hordon Health lost a member of its extended family yesterday at the Boston Marathon. Her name was Krystle Campbell, and she died instantly yesterday at the bombings. Krystle could easily have been described as the salt of the earth, but her complexity demands more."

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UPDATE: WCVB reports that, in a "hospital mix-up," Campbell's family members were initially told by medical staff that their daughter had survived, only to find out later she had died.

More from the Associated Press:

BOSTON (AP) A 29-year-old restaurant manager has been identified as one of three people killed in the bombing at the Boston Marathon.

Her father says Krystle Campbell, of Medford, Mass., had gone with her best friend to take a picture of the friend's boyfriend crossing the finish line on Monday afternoon.

William Campbell says his daughter, who worked at a restaurant in nearby Arlington, was "very caring, very loving person, and was daddy's little girl." He says the loss has devastated the family.

He says the friend was seriously injured in the explosion.

An 8-year-old, Martin Richard of Boston, also died. He was at the finish line watching the race with his family.