POLK COUNTY, Fla.-- It's hard for Kalen Lawson to get out of bed. The 20-year-old was home on leave from Fort Hood when he tried to save a woman who was hit on her scooter. 

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"She reached out and grabbed my left hand and she was like 'Please don't leave me, please don't let me go' and I told her, 'I'm not going to leave you here, I'm not going to let you go," said Kalen Lawson. 

Polk County deputies believe Corey Jones had just hit the woman, identified as Kelli Black, on her scooter, at speeds of 95 mph. 

Lawson and others had stopped to help her, when Lawson said his own life flashed before his eyes. He heard his friend say, "woah, woah, woah."

"In that split second, I turned and looked and all I could see was the car's headlights at first. So I had to let go of the lady's hand and basically try to push off the ground so I could get up in time," recalled Lawson. 

Black was hit a second time and was killed. Lawson survived with a broken leg.

His broken leg is painful, but the memory of the crash even more so.  

He told his family he can't get the image of Black lying on the ground out of his head. 

"I just wish I could've saved that lady's life…That's the one regret I'm going to have for that whole night is that I couldn’t get that lady out of there in time," Lawson said. 

"It will never leave my head. This will never leave my heart. This will never leave my mind. This is something I'm stuck with for the rest of my life."

Doctors have told Lawson it could be a year before his leg fully heals. While he's praying for a smooth recovery, he says he won't have peace until the driver who hit him and Black is arrested.

"I just want this man caught. Once he's caught, then my mind will be at ease," Lawson said. 

Polk County deputies believe the driver who hit them and took off was in a white Ford F-150 or something with a similar appearance. They would've been in the area of Kathleen and Galloway Road, around 2:20 a.m., on Aug. 2. 

If you have any information, call the Polk County Sheriff's Office at (863) 298-6200 or Crime Stoppers at 1 (800) 226-8477 to be eligible for a cash reward.