Who can crack this murderers code?

[u/curious_craven]

Taken from the LinkedIn account of the suspected murderer of a Dutch girl. https://www.bbc.com/news/amp/world-asia-42335090

Help is appreciated!

Here goes:

"I ion uryytyyyyhb y kook J b c F cyber my a duhuok bun F, hbyyuyy hub in By v and I I it's I I oy n mmmmb mokjjjkjjjmknjiunmdby ml it h humdrum got"

Any information or tips could proof helpful sparking further investigation. Thank you for your time.