Complex sentence: Several years before his death, Daredevil had confronted the Kingpin when he returned to Hell's Kitchen after making a deal with the government and seeing no other options to stop Fisk killed him during their final battle in front of many people on the streets.
Split into simpler sentences: Several years before his death, Daredevil had confronted the Kingpin when he returned to Hell's Kitchen. Fisk had made a deal with the government and Daredevil, seeing no other options to stop Fisk, killed him in front of many people on the streets.