Brother of Jonathan Pettigrew, who was gunned down on bus in Bronx

The shattered family of a Bronx man senselessly shot on a city bus for telling an obnoxious teen to pipe down revealed Wednesday that his young daughter still hasn’t grasped his death. Jonathan Pettigrew, 41, was headed to pick up the 7-year-old from daycare Monday when he got in a fateful argument with a still-unidentified youngster on a BX36 bus, his brother Avery Pettigrew, 43, told The Post.