It was two days before Christmas in 1974 when three young women, Rachel Trlica, Renee Wilson, and Julie Moseley went to the mall in Fort Worth, Texas, and they haven't been seen since. The following day a mysterious letter showed up saying that they had went to Houston, Texas. But there were some pretty odd things about this letter that really raised some concerns for family members and law enforcement. Investigators are still hopefull that someone may know something that would help...