Obviously his parents is whom he is referring to. The dad did the beating, most likely, but the mother remained silent. Especially given this statement:
On Feb. 25, 1957, a naked, emaciated boy between 4 and 6 years old was found dead in a box in a wooded area in northeast Philadelphia. He had been severely beaten, Philadelphia Police Capt. Jason Smith said.
Along with the fact the boy was never claimed.
It is a good thing that they finally identified this poor child and finally (apparently) put this to rest. Somehow, though, it is also sad to put a name with the tragedy, maybe more personalizing, I guess. Such a sad, short life for this little boy; who knows how many there are out there just like him. He has no sadness now as it is safe to say he is now at peace with the Lord.
