After she made the harrowing discovery, she scrambled to find the key to the Master Lock that kept her brother trapped. She pulled him out of the cage and put her ear to his chest desperately trying to find a heartbeat.

"I couldn't hear anything," she said.

Then, she asked for help from her stepsister, who in turn called adults for help.

As they waited for adults to come home, Christina Choate frantically tried to revive her brother. She pumped his chest and used an electric air pump to try to get him air.

"I kept thinking, 'Oh my God, my brother is dead,'" she said.

