A months-long investigation by the Horseracing Integrity and Safety Act (HISA) Authority on a cluster of 13 Thoroughbred fatalities at Laurel Park during this year's winter and spring meets has determined that the deaths could not be attributed to any specific, obvious cause. The Nov. 28 report essentially reached the same no-obvious-fault finding that HISA announced back on Sept. 12 after it completed a separate-and similarly exhaustive-report on the 12 equine fatalities that occurred at Churchill Downs in April and May of 2023. "Based on the evidence and information available...