xcode json tableview sections - json

Question

I am new to xcode and I seem to be stuck at trying to create a tableview with sections.
My code below creates the header however I cannot seem to display the rows that belong to the section. I'm sure it has to do with the multidimensional array. I say this because "dobSection" value is "results" when I suppose it should display the dates under "DOB".
I have spent hours trying many different ways to get this to work..... eh! No luck.
The Json is somewhat like this:
{"results":
[{"name":"joe","surname":"blow","DOB":"1990-01-01"},
{"name":"jane","surname":"doe","DOB":"1990-01-01"},
{"name":"john","surname":"doe","DOB":"1995-06-06"}]
}
and the code
NSMutableArray *jsonResults;
- (void)fetchedData:(NSData *)responseData {
NSError* error;
NSDictionary* json = [NSJSONSerialization
JSONObjectWithData:responseData
options:kNilOptions
error:&error];
jsonResults = [json objectForKey:#"results"];
self.dob = json;
self.keys = [jsonResults valueForKey:#"DOB"];
[self.tableView reloadData];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return [keys count];
//return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
// NSString *key = [keys objectAtIndex:section];
NSString *key = [keys objectAtIndex:section];
NSArray *dobSection = [dob objectForKey:key];
return [dobSection count];
}
in addition by replacing this:
NSArray *dobSection = [dob objectForKey:key];
with
NSArray *dobSection=[[games objectForKey:#"results"]valueForKey:#"dob"];
I get all rows.
I cannot get them to group by DOB
My code above may be flawed however I would love some input on how to get this right.
Thank you