Based on a thorough search of online sources, there is no information available regarding the death of a 17-year-old male named Sam Dyson in New Orleans, Louisiana, on August 11, 2016. Numerous searches were conducted using the provided name, age, date, and location, as well as broader searches for teenage homicides in New Orleans during that time frame.
These searches yielded no reports of a death matching the specific details provided.
Consequently, no information regarding the circumstances of his death, any potential suspects, or arrests can be detailed. It is possible that the information provided in the request is inaccurate, or that the death of this individual was not reported in any publicly accessible online records or news articles. Therefore, a synopsis of this event cannot be generated.