I am doing a quantitative analysis paper on terrorism in the U.S. I have historical data on injuries, fatalities, number of incidents, and would like to predict future terrorism rate using a time-series forecast. I need to determine the response variable and multiple predictor variables to run a trend analysis and forecast. Also I need to use the data to run a multiple regression analysis based on the multiple predictor variables that contribute to the response variable. What variables do I need to run this analysis?