A man accused of stabbing his boyfriend to death and setting his Wilton Manors apartment on fire took the stand in a Broward courtroom Wednesday, saying that he killed hin in self-defense. Michael Mitchell, 44, is charged with first-degree murder and arson in the death of his boyfriend, John Young, 40, in May 2019. His trial is now nearing a conclusion. Wilton Manors Police had responded to …..