A 60-year old man with a history of hypertension, diabetes and hyperlipidemia had a sudden onset a right-sided weakness. By the time the ambulance arrived, he had difficulty speaking. Unfortunately, the patient died within the next two hours and an autopsy was performed immediately. The gross examination of the cerebral left hemisphere showed brain swelling, widened, gyri and poorly demarcated gray-white junction. Which of the following is the most likely cause of this patient`s death?