Ceremony baby
From LGPedia
In the video, She's Missing, some have speculated that they see Julia sneaking by in the background behind Jonas at approximately :55 into the video. However, it appears to actually be a woman pushing a baby stroller. This is likely a "Ceremony Baby," meaning someone chosen to do the ceremony in the future. Julia is not the right girl under this theory. Furthermore, it is possible that if this is a Ceremony Baby, the Homeless Watcher seen at 0:05 of Warwalking is the father.