I was starting to head out of Whiterun while two Alik'r were examining a http://s12.postimg.org/6lpkeykgs/Slain_Guard.jpg that had died during a vampire attack at night. Another Whiterun guard comes running up and inspecting the same corpse. Then turns around and asks my character if http://s7.postimg.org/ummbadqfu/Did_you_see_anything.jpg Well, I knew the guard was slain fighting off vampires, but there was no dialogue option for it. Only dialogue options I got were http://s4.postimg.org/je29m8cbw/Framed_Dialogue.jpg. I found if I chose, "I'm not sure what happened" the guard would mention to come let them know if I learn anything about it. The other dialogue choice led to my player getting arrested with 100 gold bounty.
I find this strange as I've only come across it once before when the Whiterun Stable owner's body was lingering around for a while having also been killed by a vampire attack. The first time I shrugged it off. Happening again now though, I'm curious if this is the start of another quest or something or if anyone else in these forums has additional info on these dialogue options and where they stem from or what they lead to? Or if anyone else has come across this before? Doing a quick check on google or the UESP wiki page, I couldn't find any info.
I don't think this is to do with the In My Time Of Need quest.