I know who bombed Boston...?

[Cherry]

So I was on Facebook and I saw this page about it and it was made on Saturday! Therefore the knew and planned the attack. Should I contact authorities? Here is the page
http://25.media.tumblr.com/bf5af7dd24392a63c6241ac0479abf8c/tumblr_mlbgzzQDpc1rfy1jko1_1280.jpg