Complex sentence: Nick, Renard and Kelly bust into Steward's house and after Renard attacks him, he discovers that he last called from Vienna and that Rispoli and Viktor are coming to Portland for the baby.
Split into simpler sentences: Nick, Renard and Kelly bust into Steward's house. Renard discovers that the last call to Steward wa from Vienna and that Rispoli and Viktor are coming to Portland for the baby.