After seizing Rome and being appointed dictator, Sulla initiated a purge against all supporters of Marius. Caesar was the Son-in-Law of Cinna, an ally of Marius, and was thus initially targeted. I'll just give you the paragraph from Wikipedia that inspired this thread.
Speculate how history might have been altered had Caesar been executed in 81 BC?
The young Caesar, as Cinna's son-in-law, was one of Sulla's targets and fled the city. He was saved through the efforts of his relatives, many of whom were Sulla's supporters, but Sulla noted in his memoirs that he regretted sparing Caesar's life, because of the young man's notorious ambition. The historian Suetonius records that when agreeing to spare Caesar, Sulla warned those who were pleading his case that he would become a danger to them in the future, saying "In this Caesar there are many Mariuses."http://en.wikipedia.org/wiki/Lucius_Cornelius_Sulla_Felix#cite_note-12
Speculate how history might have been altered had Caesar been executed in 81 BC?