How much did cho idolize E & D

I know he did the shooting partly because of columbine , but how much did he idolize both E & D??

Enough to call the both of them "martyrs".

When it first happened he wrote a paper in school about wanting to, in his own words, "repeat Columbine". Then almost eight years later he went and actually did it, mentioning Columbine in the manifesto he left behind. So to me it seems like Eric and Dylan left a rather big impression on him.