She was literally laid prone out with her feet up in the air and put a fear that he had tried to cut her in half.

It was very brutal and probably one of the worst homicides in Phoenix area.

Tell it. I'm Scott Weinberger, investigative journalist and former deputy sheriff.

I'm Anaseika Nicholazzi, former New York City homicide prosecutor and host of investigation discoveries true conviction.

And this is anatomy of murder. I'm kicking it back to fall right now even though we're officially in spring because

this case is making me think Halloween and now I have costumes on my mind. The ghosts, the

goblins, the barbies. It got me thinking about the human attraction to

fantasy, taking at least one day of the year or more for some people to play dress up to become

someone else.

Acting out one's fantasy can be playful or romantic, an expression of extreme fandom,

like the cos-players at Comic-Con

or on the sidewalks of Times Square.

But it can also be dark, and in some extreme cases deadly as you will see in today's episode.

Today we're bringing you the story of not one but two tragic and brutal murders that occurred in Phoenix, Arizona in

1992 and 1993. Two young women who fell victim to one man leading two lives. One is a family man, a father, and another as a killer.

In November of 1992, 21-year-old Angela Brasso was living with her boyfriend Joe in an apartment complex in Phoenix, Arizona.

Her mother described Angela as a quiet and shy girl growing up, but she had blossomed into an ambitious independent

young woman with dreams of a career in the burgeoning tech industry.

She had graduated from the DeVry Institute of Technology.

The boyfriend had lived in Phoenix.

Was going to the DeVry Institute in Phoenix.

That's the voice of William Sheera,

...