Police are asking for the public's help locating a man who is a person of interest in a recent fatal stabbing.


Rashad Lesley-Barnes, 24, was fatally stabbed after an argument with another man as the two got off of an MBTA bus in Roxbury Aug. 15.


Police released pictures of a man getting on the Route 23 bus at School and Washington streets Dorchester. Another picture shows the man during the stabbing incident near Dudley Square. The photos were taken from the surveillance cameras on the bus.


Lesley-Barnes' murder was the fifth in a violent four-day span last week during which another man was fatally shot and three women were gunned down while sitting in a car.


Anyone with information can call 617-343-4470.