I've created maps using CartoDB before, but my newest project is a little more advanced.
I've imported a dataset of tornado tracks on a particular day using Storm Prediction Center data. --> http://www.spc.noaa.gov/gis/svrgis/
What I've accomplished so far is showing the tornado touchdown points from the lat/long columns (see attached photo).
The table also contains the liftoff points from two additional lat/long columns. The problem is, I cannot seem how to display both points on the map and connect them by a line.