Since 2014, there has been much speculation and (at times) inaccurate information which has been published. Kremers Froon Wiki: Clarification of the facts from the evidence in the Kremers-Froon disappearance - Wiki dedicated to distinguishing fact from fiction in relation to this topic.
Wikipedia entry: Deaths of Kris Kremers and Lisanne Froon - Good starting point which gives an overall summary of the disappearance. Please check the following links for an overview of recent developments and discoveries in this case: Summary We welcome respectful dialogue related to this mystery. Circumstances and aftermath of their disappearance have resulted in much speculation. Their cause of death could not be determined definitively. After extensive searches, portions of their bodies were found a few months later. The girls disappeared on April 1, 2014, while hiking in the region of the Pianista trail.
This is the leading subreddit dedicated to discussion around the disappearance of Kris Kremers and Lisanne Froon in Boquete Panama in 2014.