As families waited to hear if their loved ones were safe during the Boston Marathon attacks, one father believed his daughter was, but found out 12 hours later that she was actually confused with her friend and was dead.
Medical staff told William Campbell Jr. that his daughter Krystle survived the bombings and was having surgery. They believed her friend was Krystle because the friend was carrying her ID.
The father spent 12 hours in the hospital while he thought his 29-year-old daughter was having surgery.
"We had the doctors come out and tell us everything they did (on the survivor) - and it wasn't our daughter," he said.
His daughter went to the marathon with her friend, Karen Rand, so they could cheer on Rand's boyfriend.
It was during the first blast that Campbell died and Rand was injured.
Upon learning of the bombings, William Campbell immediately went to the hospital. He was relieved after doctors said they were operating on Krystle's leg at Massachusetts General Hospital.
He was excited to see his daughter when nurses brought him into a post-operating room around 2 in the morning to see her.
But when he saw her, he realized it was not Krystle and was instead Karen Rand.
"I said, 'That's not my daughter, that's Karen! Where's my daughter?' The doctors were as shocked as we were," he said.
He later identified Krystle's body.
"I almost passed out on the floor," he said. "She was the best person you'd ever meet. She helped everybody. I don't care who you were, she was always there."
She was one of the three that were killed during the two blasts. Another victim was Martin Richard, who was just eight years old.
Approximately 176 people were injured, 17 are in critical condition. Up to 10 people suffered a lost limb, including two children.
"My daughter was the most lovable girl. She helped everybody, and I'm just so shocked right now. We're just devastated," Krystle's father said. "She was a wonderful, wonderful girl. Always willing to lend a hand."