Which three states had the highest number of police killings according to the dataset?

Which three states had the highest number of police killings according to the dataset?: a task in data-agent-harbor-train (Harbor dataset). Files (in /home/user/input, no subfolders): - PoliceKillingsUS.csv - PercentagePeopleBelowPovertyLevel.csv - MedianHouseholdIncome2015.csv - ShareRaceByCity.csv