notice how they use the lowest quality image available to compare him to.

https://media.bizarrepedia.com/images/adam-lanza__.jpg

http://www.murderpedia.org/male.L/images/lanza-adam/adam-lanza-5.jpg

http://www.isthatbaloney.com/wp-content/uploads/2012/12/adam-lanza1.jpg

I'm not buying it. These "hey look how these people look remotely similar!" posts grind my gears to be honest. Saying two people look alike isn't evidence of much. Saying all of the sandy hook children look just like the children singing in that anti-gun choir (or w/e it was) is a little different in that it is multiple data points. Even still, there needs to be facial analysis for it to mean anything. Little kids often look real similar because of their facial features being undeveloped and covered by baby fat.