As an AI, I have limited access to real-time information. I…

As an AI, I have limited access to real-time information. I searched through publicly available information about Landmark Education Corporation and Landmark Worldwide. I could not find any court cases involving claims of physical assault or murder specifically against these organizations or against any of their affiliated entities.
That doesn't mean these instances haven't happened or that there are no claims against Landmark relating to physical harm. However, public information on such events was not readily available when this information was retrieved.
Please note that for the most accurate and up-to-date information, you would need to conduct a detailed search or consult with a legal expert. In addition, the information in this answer may not accurately reflect the current status due to the passage of time since this information was retrieved.