Previously, unaccused.

You know, then he started asking me a bunch of questions I asked.

Where was I? This one, automatically being living that lifestyle.

Like, okay, sounds like this crazy stuff.

It went the way it seemed like it should have went.

Now, I wasn't on the jury, I wasn't a prosecutor, I wasn't there as a policeman at the time.

But the old and I hate to close shave.

But if it looks like a duck and it walks like a duck, you know, it's probably a duck.

I'm Amber Hunt and this is accused, the unsolved murder of Ritha Welch.

Every criminal case is a brand new jigsaw puzzle.

In fact, it's something of a cliche in the courtroom.

In one murder case I covered in Michigan, the prosecutor literally made huge puzzle pieces

to assemble into one giant prop in its closing arguments, a phone call here, a hair discovered there.

He flipped each piece over and, on the backside, portions of a portrait began to emerge.

On their own, the clues mean nothing, but joined them together, as this prosecutor did,

and he sometimes end up with a convincing portrait of a killer.

The shoe prints, hair samples, and jilted-ex girlfriend were pieces of the puzzle

that landed William Virgil in prison for killing Ritha Welch in 1987, but they weren't the only ones.

A big piece came by way of Ritha's boyfriend, James Becker, who said he spotted a man

in Ritha's hallway the Thursday before her death, a man he identified in a photo lineup as William Virgil.

James Becker met Ritha Welch long before a death back in 1976.

According to his testimony by the time she died in 1987, they had dated on and off for nearly 12 years.

...