NEW YORK, March 18 (UPI) -- A police officer theorized Connecticut shooter Adam Lanza researched previous mass killings to plan his massacre as he would to get a video game's high score.
The unidentified law enforcement officer told the New York Daily News Lanza's spreadsheet of names, weapons and body counts from previous mass murders and attempted killings, compiled over a number of years, "sounded like a doctoral thesis. That was the quality of the research."