Why would defense lawyers subpoena Perry March's son, Samson, as a witness at his father's murder trial?

Some say the teenager has already been tormented enough for the past 10 years since his mother, Janet Levine March, disappeared.

Why would the defense lawyers consider putting Perry's son on the witness stand in front of a jury and a courtroom of people to testify? Many have said he might have been coached by his father to say certain things.

Here's the testimony I believe Perry's defense lawyers would want Samson, who goes by his nickname of Sammie, to tell the jury.

It's the same story he told me in 1999 on one of my two trips to Mexico to interview Perry and his father, Arthur.

Perry urged his son to tell me on camera about the last time he saw his mother.

It was the first time he had ever told what he claims he remembered that night in August of 1996. He was five years old at the time.

On the night she disappeared, the now 8-year-old told me, he had gone to bed. His mother came to his bedroom about 8 p.m. to give him his goodnight kiss.

She was carrying some kind of bags or luggage, he said. She kissed him and told him she would be back soon.

He told me his mother left his bedroom and went to the basement garage.

Sammie claims he walked to his bedroom window just as his mother was driving away. She stopped her car and waved to him.

Sammie said he waved back and his mother drove away. Hours later, about 3 a.m., Sammie said he woke up having a nightmare and climbed in bed with his father.

Did it really happen or did Perry use this as an alibi and tell his son the story so many times over the years that Sammie actually believes it?

The question is will the jury at his father's murder trial believe it if his son is called to testify.