Which Roman Emperor reduced taxes and banned capital punishment but was also known for murdering innocent people and eventually committed suicide when the Senate declared him a public enemy?

The Roman Emperor you are referring to is Nero. He is known for implementing tax reductions and abolishing capital punishment in some cases, but his reign was also marked by tyranny, including the murder of perceived enemies and innocent individuals. Ultimately, after facing growing opposition and being declared a public enemy by the Senate, Nero chose to commit suicide in 68 AD. His legacy remains one of both cultural patronage and brutal despotism.