Couple points you've brought up here, so I'll do my best to explain my position.
You're saying it's already been said that the perp couldn't see Libby's social media unless he was in her network?
Let me link you to Libby's twitter account
https://twitter.com/libby1227?lang=en
Doesn't look private to me.
You will see that Libby writes that she is 12 years old, (when she sat up the account) with links to a Kik account, Instagram, and Snapchat.
She had 44 followers and was following 54 others.
Keep in mind she was only 12 years old at that time.
It lists only one tweet now, which was from 2014. Odd. Could that account have been scrubbed by LE?
Twitter could been the exact place where she posted her plans.
The Kik account is an anonymous messaging app where anyone can say they're anyone, and no one's the wiser. There's no verification of any registration information entered.
I can't find the link now for her Instagram but it was available. I viewed it and learned much about her from it. Again, could LE have removed it?
I watched the LE press conference video again linked below
[video=youtube;mZcHfgbOcKo]https://www.youtube.com/watch?v=mZcHfgbOcKo[/video]
One of the questions asked of LE was, and I quote:
"....
How long after Liberty posted to social media did the crime happen? Did the murders happen immediately after or was there time for someone to see them on social media, and then meet them on that trail?"
What jumped out at me was the words '
how long after?' I didn't hear, '
did she post?'
Sergeant Dave Burstyn replied that they were keeping all that information close to the vest. However, he did state the following, and again I quote:
"...One of two things happened. It was a chance encounter. That's possible.
Don't think it's likely, but it's possible. Or that person knew that they were going to be there. That's possible too."
RBBM
What do you get from those words? WHY did he say 'don't think it's likely?' What information did he have to base that upon? So which possibility is LE leaning toward?
You pointed out that Sergeant Riley's words could have just been generic because they were in response to whether parents should take any special precautions.
Generic? Imo, his words are anything but. I believe he struggles to hold back the words he really wants to say.
I watched another video by a news station on or about the same date (I've linked below) which also contains a clip of Sgt. Riley speaking. I believe he decided to say a bit more of what he had struggled to hold back.
[video=youtube;MjAJmoOyDTg]https://www.youtube.com/watch?v=MjAJmoOyDTg[/video]
In this video he states, "We're checking their cell phones, we're checking their social media places. We're looking at every possible option."
I guess it's all in how you look at these things. How much weight you give them. Each of us have to draw our own conclusions.
Mine is firmly this was not a random murder.
These girls were targeted and never had a chance...