i dont know who this is, i think he killed people but im not sure would be happy if you could help me. sorry only got a gif
On the right side of your post ID there is a little triangle pointing to the right side.
When you click there will be a dropdown menu with one of the options being "Image search" which the lets you choose between Google and iqdb.
Try clicking Google
Elliot Rodger the normies killer.
You should read his manifesto, such a great mind and inspiration.