It seems the father was more concerned about revenge than attending to his injured daughter.
Well, he had shacked up with the "daughter's" mother for seven (7!) years, had another kid by her and had her knocked up again. But he was gonna marry her on 'Satidy'...
...so, bein' a bads@$$ dude an' kickin' the c__p out of an injured old Honky naturally took precedence over the life of his "fiancee's" kid...
~~~~~~~~~
To paraphrase Ron Weasley, "You definitely need to get yo' priorities straight..." </SARCASM>