I am unable to find any online sources detailing the death of an 18-year-old, Black/African American male named George Allen Smith in St. Louis, MO, on or around May 26, 2012. Searches for this individual with the provided details did not yield any relevant news articles, obituaries, or public records.
The information available online predominantly pertains to the case of George Allen Smith IV, a different individual who was involved in a widely publicized incident at sea in 2005. There are also mentions of other individuals named George Smith in the St.
Louis area, but none match the specific age, race, and date of death provided in your request.
Therefore, it is not possible to provide a detailed synopsis of this event, including information about any arrests or suspects, as there is no information available in the online sources I can access. It is possible that the information you have is not accurate, or that the death of this individual was not reported in a way that is accessible through online searches.