There were many warning signs that indicated mass shooter Nikolas Cruz was not well. 

In 2016, officials recommended that he be involuntarily committed for mental health examination for three days under Florida's Baker Act. The Chicago Tribune reports that the recommendation was not acted upon.

Cruz was the shooter behind the school shooting at Marjory​ Stoneman Douglas High School in Parkland, Florida on February 14, which left 17 dead. He was formally charged with 17 counts of murder earlier this month.

The documents gathered by psychological assessment service Henderson Behavioral Health revealed disturbing details about Cruz's behavior. Cruz once cut his arm because he was angry that his girlfriend broke up with him. He also wrote the word "kill" in a notebook, bragged about drinking gasoline and about buying guns.

This wasn't the only tip authorities had received about Cruz. The Federal Bureau of Investigation admitted that it failed to act on information it received regarding the 19-year-old killer.

On Sunday, Parkland student survivor and activist Emma Gonzalez told 60 Minutes correspondent Sharyn Alfonsi that she hopes Cruz faces the death penalty. She also called out Trump's plan to arm teachers.

But that's not all Gonazlez and her peers are up to. Following last week's student walk-outs, the Parkland students-organized protest the March for Our Lives, will unfold in Washington D.C. on March 24.