It all played out inside a home on the 51-hundred block of Montour Street in Crescentville.
Police say three men had broken in to the house.
Forty-year-old Miriam Ramos had just returned from her school bus route. She and her husband, 42-year-old Felipe Collazo, were ordered to lie on the floor.
The invaders demanded money. When they tried to assault Ramos, Collazo jumped up and struggled with the men.
One of them fired a gunshot.
Collazo wrestled the gun away from him, but it jammed.
Police say he then grabbed a large kitchen knife and plunged it into the robber's chest.
The suspect staggered from the house and slumped on a stoop around the corner.
Police found him there with the knife on the ground next to him.
He had three cell phones and $500 in cash.
A neighbor says he saw the man slumped over and talking on a cell phone before the police arrived.
He died five hours later at the hospital. Police have not been able to identify him yet. The other two suspects left him and fled.
The getaway car is a gray Pontiac minivan owned by a friend of the robbery victims. Police are still trying to figure out why the robbers targeted this particular house in broad daylight.
