Where did this guy's body go?

Question

In "...And the bag's in the river" (episode 3 of the first season):

Walt kills Krazy 8

But we're not shown what happens to the body? Did Walt use the acid trick again?

Answer 1

According to this source,

It is then heavily implied by Jesse that he was dissolved in hydrofluoric acid like his cousin Emilio.

Jesse says in Season 1 Episode 7:

"I got two dudes that turned into raspberry slushie then flushed down my toilet. I can't even take a proper dump in there. I mean, the whole damn house has got to be haunted by now."

I think this is a pretty clear indication that the acid trick was used with Krazy 8 and his remains were flushed down the toilet.