1998 Jeep Wrangler engine turns over but will not start

Engine was running fine with no problems when it suddenly stalled and would not restart. Gas tank is 1/2 full. After towing home I performed the basic checks and could not find any obvious problems. I checked for spark at the plugs and could not confirm spark was present. I then checked for spark coming out of the coil and did not find any there as well. I checked out the coil resistence and the primary was below the acceptable level (almost a dead short) and the secondary was within range. I replaced the coil and also the plugs since I was in the neighborhood. Still no spark and no engine start. I changed the Crank Position Sensor and still no change.
Where do I go from here? Any suggestions would be welcome. Thanks.