What if it took place pre-series Stanford era?

Sam and Jessica had gone to her home for their spring vacation. They went out to a bar to get away for the night. Sam had spoken to her mother the night before and now he was nervous.

"Jessica, I have something to ask you," he said.

"Yes?" she asked, excitedly. She had a feeling she knew what was coming.

"Will you marry me?" Sam asked, as he presented her with a ring.

"Yes," Jess squealed and jumped up and hugged him.

"I'm so happy," Sam said. He was finally getting his normal life.

"Let's go home. I want to tell my mom."

"OK," Sam said, momentarily saddened by the fact that he couldn't share this with his family

They walked out, hand in hand. They had parked behind the bar, so they cut through the alley.

"Got any change?" a man asked.

"No, sorry," Jessica said.

"Give me your wallets," he demanded and pulled a gun.

"OK, take it easy," Sam said and gave him his wallet, while Jessica handed him her purse.

An employee was taking the trash out and was transfixed by the scene before him. He had lifted up the dumpster lid and as he watched, he dropped it.

The robber was startled by the loud sound and reflexively pulled the trigger. As Jessica fell to the ground, he ran away.

"Jessica," Sam screamed as he went down to her. "Call an ambulance," he yelled to the still gaping employee. He came to himself and ran off to find a phone.

"I'm OK," Jessica said in amazement.

Sam watched as the wound healed in front of his eyes. What was she?