Random dna- in sweet little jenise's case, Gabe gaeta was caught because they were basically asking every male door to door for dna. He didn't want to give it but finally did. Also in the baton Rouge serial killer case, they were asking all males to volunteer their dna and it would be disposed/ not on record after. The lines were long to get people on the "not it" list. Of course, Derrick Todd Lee didn't offer up any saliva test. They had to go after him to get it. May he rest in unpeacful pits of fiery hell. So they can do a large random request. But it's basically more helpful to see who DIDN'T want to do it.
Why is everyone saying one person couldn't control 2 girls. You are walking down the street with your friend right now. Someone pulls a gun and says make a sound and die. Did you just run off and leave your friend? Probably not. Even as an adult. People hold up an entire bank with one or 2 gunmen. I have never heard of needing a 1 to 1 ratio to control victims.
I am glad there are footprints. So many cases are solidified with shoes. Possible evidence taken in warrant. Other than possibly dna and maybe photo, they Prob know the dudes shoe size and brand. Beautiful.
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Your shoe discussion made me wonder something. Last night it was reported that police raced back to the crime scene before dark to search for more evidence. What if they were matching shoes to shoe prints?