Complex sentence: Uco grabs another gun shooting Reza dead, then shoots Bejo, before turning his gun towards Rama who throws the "karambit" at Uco then stabs him with the other.
Split into simpler sentences: Uco grabs another gun and shoots Reza dead, then shoots Bejo, before turning his gun towards Rama. Rama throws the "karambit" at Uco then stabs him with the other.