Anastasia Nicolazzi

And that was around this time that Grant's brother Cody had expressed to his girlfriend that his youngest brother's increasingly erratic behavior was starting to get frightening. And he even feared for his family's safety.

And that was around this time that Grant's brother Cody had expressed to his girlfriend that his youngest brother's increasingly erratic behavior was starting to get frightening. And he even feared for his family's safety.

An angry and increasingly unstable young man in a house full of guns. It was a dangerous combination and it might have proved deadly. According to Cody Amato's girlfriend, on January 24th, his father had finally issued an ultimatum to his troubled youngest son. Grant had to move out. The family would no longer tolerate his obsessive and criminal behavior.

An angry and increasingly unstable young man in a house full of guns. It was a dangerous combination and it might have proved deadly. According to Cody Amato's girlfriend, on January 24th, his father had finally issued an ultimatum to his troubled youngest son. Grant had to move out. The family would no longer tolerate his obsessive and criminal behavior.

Now, the troubling backstory on Grant's relationship with his family was still in the process of being fully uncovered in the hours after the discovery of the murders. But just his absence from the scene made it imperative for law enforcement to locate him.

Now, the troubling backstory on Grant's relationship with his family was still in the process of being fully uncovered in the hours after the discovery of the murders. But just his absence from the scene made it imperative for law enforcement to locate him.

The fact that he was at a hotel by the airport was already a clue that Grant was demonstrating the behavior of someone on the run. So police approached carefully, more than aware that the 29-year-old was likely desperate and probably armed.

The fact that he was at a hotel by the airport was already a clue that Grant was demonstrating the behavior of someone on the run. So police approached carefully, more than aware that the 29-year-old was likely desperate and probably armed.

But I will say, and of course, it's never one size fits all, he also doesn't behave like someone who would have just learned that both his parents and his older brother had just been murdered, a fact that was not lost on investigators in the room.

But I will say, and of course, it's never one size fits all, he also doesn't behave like someone who would have just learned that both his parents and his older brother had just been murdered, a fact that was not lost on investigators in the room.

Grant tried to establish an alibi for the day of the murder, but both the information he was providing and the way he provided it, they just weren't that convincing.

Grant tried to establish an alibi for the day of the murder, but both the information he was providing and the way he provided it, they just weren't that convincing.

Considering Cody had never shown signs of depression or self-harm behavior, it was at least on its face a pretty unconvincing and even outrageous suggestion.

Considering Cody had never shown signs of depression or self-harm behavior, it was at least on its face a pretty unconvincing and even outrageous suggestion.

But Grant's suggestion did support the theory that staging a murder-suicide was indeed part of the killer's plan to get away with the homicide.

But Grant's suggestion did support the theory that staging a murder-suicide was indeed part of the killer's plan to get away with the homicide.

Horrific pictures of his own father in a pool of blood on the kitchen floor, his brother curled up in the room off the garage, and his mother, the woman who tried so hard to save him from his own demons, face down on her desk. Photos that would be disturbing to anyone, let alone a family member.

Horrific pictures of his own father in a pool of blood on the kitchen floor, his brother curled up in the room off the garage, and his mother, the woman who tried so hard to save him from his own demons, face down on her desk. Photos that would be disturbing to anyone, let alone a family member.

But in the interview room, they were met with a blank stare and then a half-hearted attempt at genuine emotion.

But in the interview room, they were met with a blank stare and then a half-hearted attempt at genuine emotion.