I have footage of the May 4 tornadoes AFTER Greensburg. Mostly stills backlit by lightning, but very few chasers observed these tornadoes and they were a significant portion of the event. On a somewhat eerie note, during my video review, I found audio from our conversation with officer Tim Bucklin shortly before he was fatally injured, as well as a shot of him driving westward towards the rural area south of Macksville, possibly the last time he was seen before being overtaken by the St John tornado.
I don't know what the proper course would be, but if the producers wanted to work that into the May 4 chapter as a sort of small tribute, I could help with the storyline....or if it's better to not mention it at all, the tornado footage would still work. Just thought it was worth mentioning since these tornadoes took lives (uncommon for 'Storms Of..' events).
I've also got footage from April 21 and May 22, but many have already volunteered that have more or less the same angles I do.