53 -year -old Jeffrey Johnson kills his boss for sacking him

After his former boss came out into the street to talk with him, Johnson shot the 41-year-old man three times in the head outside workplace in New York City at 9am, but was chased by heroic construction but Johnson  opened fire  when  heroic construction alerted the police officer who chased and shot him dead with single bullet.
The ugly scene left total of four dead and nine injured.