Letter: School shooter fixated with guns, dreamed of killing


              Marjory Stoneman Douglas High School shooter Nikolas Cruz speaks with sentence mitigation specialist Kate O'Shea, a member of the defense team, during the penalty phase of Cruz's trial at the Broward County Courthouse in Fort Lauderdale on Thursday, Aug. 25, 2022. Cruz previously plead guilty to all 17 counts of premeditated murder and 17 counts of attempted murder in the 2018 shootings. (Amy Beth Bennett/South Florida Sun Sentinel via AP, Pool)
            
              Marjory Stoneman Douglas High School shooter Nikolas Cruz chews on a pen during the penalty phase of Cruz's trial at the Broward County Courthouse in Fort Lauderdale on Thursday, Aug. 25, 2022. Cruz previously plead guilty to all 17 counts of premeditated murder and 17 counts of attempted murder in the 2018 shootings. (Amy Beth Bennett/South Florida Sun Sentinel via AP, Pool)
            Marjory Stoneman Douglas High School shooter Nikolas Cruz speaks with sentence mitigation specialist Kate O'Shea, a member of the defense team, during the penalty phase of Cruz's trial at the Broward County Courthouse in Fort Lauderdale on Thursday, Aug. 25, 2022. Cruz previously plead guilty to all 17 counts of premeditated murder and 17 counts of attempted murder in the 2018 shootings. (Amy Beth Bennett/South Florida Sun Sentinel via AP, Pool) Psychiatrist Dr. Brett Negin testifies during the penalty phase of the trial of Marjory Stoneman Douglas High School shooter Nikolas Cruz at the Broward County Courthouse in Fort Lauderdale on Thursday, Aug. 25, 2022. Cruz previously plead guilty to all 17 counts of premeditated murder and 17 counts of attempted murder in the 2018 shootings. (Amy Beth Bennett/South Florida Sun Sentinel via AP, Pool) Fred Guttenberg speaks with Assistant State Attorney Carolyn McCann as capital defense attorney Casey Secor passes by during a break in the penalty phase of the trial of Marjory Stoneman Douglas High School shooter Nikolas Cruz at the Broward County Courthouse in Fort Lauderdale on Thursday, Aug. 25, 2022. Guttenberg's daughter, Jaime, was killed in the 2018 shootings. Cruz previously plead guilty to all 17 counts of premeditated murder and 17 counts of attempted murder in the 2018 shootings. (Amy Beth Bennett/South Florida Sun Sentinel via AP, Pool)