00:01
Okay, so we have veronica had been a criminal attorney for several years and had handed a number of murder cases, handled a number of murder cases.
00:14
She thought this case was one of the strangest.
00:18
Her client, frederick, had murdered the pizza delivery man who had stopped to ask for directions.
00:42
He bragged about it to his friends, which led to an arrest and a confession.
01:07
When interviewing some of fred's relatives for the penalty phase of the trial, veronica came across some interesting information.
01:18
Almost all of the intermediate, almost all of the immediate male relatives were in prison for violent crimes.
01:45
This reminded veronica of an article she read in a paper in the paper a few months before it.
01:53
It was about a study done in europe of a family with a condition called maoa deficiency.
02:01
The genetic defect for this condition is on the p11 area of the x chromosome in the gene production of monoamine oxidase a.
02:27
Maoa is known to help metabolize serotonin, dopamine, and serotonin, dopamine, and noradrenaline.
02:52
I'm just going to to put n in dnn.
02:56
Brain chemicals known to play an aggressive and potential dangerous behavior.
03:04
Those with the defective gene show a decrease in maoa activity.
03:11
A large number of males in european family showed minor mental retardation and abnormal behavior that included impulse impulsive aggression.
03:27
Serotonin has long been implicated in animal studies as a mediator of social behavior.
03:35
Scientists now believe that low serotonin levels can lead to all kinds of problems.
03:53
Impulsive killers and other violent offenders have been shown by dr.
03:59
Makuri linna, a scientific director of the national institute on alcohol abuse and alcoholism, to have low serotonin levels.
04:10
Veronica thought she might have a chance to save frederick from the death penalty if she argued he was predisposed to uncontrollable aggressive behavior...