Sergeant Tyrone Hassel III

Not a girlfriend.

When he told me he was getting married, I was like, is he getting married for money in the military, or are you getting married because you love him?

You say for the money.

What do you mean?

Because in the military, I believe that you get more money when you're married.

He was like, no, Dad, I really love her.

Then you finally meet Kamaya, and what did you think of her?

It was like I'd really known her all my life.

She walked in, hey, Dad, called me Dad right off the bat.

So you gained a daughter-in-law, and then very quickly, you're a grandfather.

Yep, I gained a daughter-in-law, and then next thing you know, boom, the baby bump.

She was pregnant.

It was my son's first child.

He was happy about it, so when he was happy, you know, I was happy.

Delina and her husband, former Sergeant Mark Burks, became fast friends with the Hassels.

Mark remembers a sweet moment between Tyrone and Kamaya when they all watched the Super Bowl together in 2018.

He had his arm around her and he was like kissing her on the cheek and, you know, my wife was like, aww.

It's now been a week since the murder, and none of the leads have panned out.

So police asked Kamiya to come in for another interview.

This is the never-before-seen interview obtained exclusively by 20-20.