The family of Riley Strain, the US fraternity student who died after drowning, has suffered a fresh setback after attempting to pursue legal action against his fraternity brothers over his death. The case forms part of the family's continuing efforts to seek accountability for the circumstances surrounding his death, though the article text made available does not detail the specific legal ruling or reasoning behind this latest blow.

Riley Strain's death drew widespread attention after he disappeared during a night out and was later found drowned, prompting his relatives to pursue further scrutiny of the events involving his fraternity brothers. The full details of the lawsuit's outcome, including any court findings or statements from those involved, were not available in the source material provided.