Below is a pressrelease of the Dutch prosecutor on MH17. The pressrelease is dated February 18
The letter to the next of kin was not made public by the prosecutor. However the media were able to publish the letter.
This is the Dutch text of the letter
Here is the english text
The National Public Prosecution Service has sent the relatives of the victims of the MH17 crash a new update on the state of affairs in the criminal investigation.