Need another clue?
At the beginning of the story:

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"What happened?" she demanded. The circumstances were pretty unbelievable. The fireball had hit and she had found a completely naked man sitting, apparently unhurt, in the very center of the crater.

"I...I don't know." He rubbed his face, smearing the soot more thoroughly across his features.

"Who are you?"

In the uncertain light of the fire, he looked more lost than ever. "I don't remember," he mumbled. His voice had begun to shake. "I...I don't know."

Something was very weird here. Still, she couldn't just leave the guy stranded almost naked in Centennial Park, in the middle of the night. He might be hurt more than it looked like. Didn't people die from internal injuries when they seemed perfectly fine? The least she could do would be to drop him off at the emergency room.

"Come with me," she commanded. "And don't try anything. I have a brown belt in karate."
simona smile