WI Bugs Moran dies in St. Valentine's Massacre in 1929

In 14 February 1929 members of the Al Capone's gang met with the Moran gang in a garage...
As soon as everyone was there Capone's gangsters started executing all the Moran gansters... (Bugs Moran was the target actually but he was late to the appointment and his would be assassins confused him with Albert Weinshank who was present and resembled him)
Moran's gang suffered a severe blow from which never recovered but Bugs Moran managed to maintain the control in his area until mid 30s...
WI Moran was in time in the garage and was killed?
Would his death made Capone stronger and managed to escape the tax invasion taxes? Any thoughts?
 
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