couod be caesar cipher, try working out smaller words, four words etc, look for repetition and solve all cases. Find every possible word, look for somewhere where he may of hidden a key.
For instance start with his birthday, numbers you find lying around, any potential number between 1 and 25 that could be a key...
Look into vignere cipher, playfair cipher and hill matrix if his a cryptography fag.
> if you mean that he just jumbled the word sequence
Then try every permutation not that hard.
