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Looks like this.....

 

Post follow up for completeness:

After changing the coil pack and having the issue again I decided to run some Techron through the fuel system and change the number 5 plug again. The plug had some carbon buildup on it when I took it out. After doing this I drove about 35 mintues and had a misfire again on number 5 with the new plug in it.
The Techron had not gone completely through the system when the misfire occured but by the time I had gotten home I was pretty low on gas. At this point I thought maybe it was a sticking valve. I didn't want to do the compression test yet because I didn't want to have to disconnect the ignition coils after I had just spent so much time doing the wires and the one coil; I was sick of meesing around on the back of the engine. I decided to try the Marvel Mystery Oil and since I needed gas thought I would try another gas treatment, I used an STP one this time. Anyway, I haven't had the issue again for over a week now when I was having it a couple times a week before. I plan to change out the oil after about 500 miles. Thanks for everyone's help.