Phantom

Here's a great case! This blood smear is from a patient with massive hemolysis. In fact,the laboratory called because routine chemistries are not working correctly and they cannot cross-match the blood. The patient initially presented with multiple knife wounds in a fight over black tar heroin (he also does skin popping). He had severe pain at the site of the injuries and was admitted to the hospital for monitoring, but over the last 24 hours, has become quite ill. He was transferred to the intensive care unit with tachycardia, fever, and shock. He is developing renal failure. The skin over his injuries has developed a bronze appearance with some red and purple discoloration. The skin is tense and exquisitely tender. There are some bullae present.

Challenge: What's the diagnosis?