Yeah the sentiment is pretty weird. Trump seemed to hang out with his friends (Rudy, some golf buddies) after his brother died.
Which you know is not that strange to do when a loved one dies. Everyone handles grief differently.
It's also not that weird to bring it up during his rally with the New Yorkers, Trump himself is a New Yorker as was his brother.
Still, with Trump it gets weird when he says stuff like: "I had a great relationship since day one" but that's Trump I suppose.
Plus Trump is very disrespectful when other people pass away in general so he sorta had it coming from people who want to sink to his level.