Woman murdered 7 year old?

Marissa

I'm not sure if you guys know about Amanda Lewis. She was convicted of murdering her 7 year daughter. Her story is that she was inside, and her 7 year old son came in and said his sister fell in the pool. She called 911 and said she wasn't breathing, they determined it to be an accidental drowning. Later that day, the grandparents call and tell the police the boy said he seen his mom drown his sister. The mom says the boy loves to tell stories. He testified at 7 years old, saying he saw it.

She passed a lie detector test. And there was footprints in the wagon of sand by the pool which would confirm she was standing in it before she "fell in"

I watched the show Killer women on Netflix and watched everything. I also watched the trial.

I honestly don't know what to believe. She's in prison so it doesn't matter. He was the only witness and some children do make up crazy stories. I once made one up saying my dad broke my arm, almost got him arrested.

However his testimony seems to be real, he has never changed his story. What do oh think?