The "bloody" man testimony is a mess.
So either this LE is so bad they didn't write down that a witness saw a BLOODY MAN in the same day and place two girls were murdered and then LOST the taped interview where she confirmed it or she did not say he was bloody and is misremembering.
It's almost certainly the latter IMO.
Eyewitness testimony is easily compromised and experts have generally agreed the first recollection immediately after the incident is the most reliable. The more time that goes by, the less reliable the memory is. Most likely this witness saw a muddy man, reported as much to LE, but as days, weeks, months, years go by and she learns details of the crime from the news she starts to think that maybe she actually saw blood as well and eventually has a false memory that was bloody. This is a common issue and has been the cause of many overturned guilty verdicts.
Regardless, it doesn't sound like we can believe the man she saw was bloody. I think she misremembered but even if she didn't then LE ruined that piece of evidence by being terrible at their jobs.
It doesn't matter much overall, it was hardly a smoking gun, but I'm concerned that so many people here seem to think her saying he was bloody on the stand 7 years somehow means he was in fact, bloody. Always, always be skeptical of eyewitness testimony especially if it's changed over time!