By all accounts, he was a doting dad to his year-old, twin son and daughter, setting up a bouncy castle in the yard for their recent first birthday party and dressing them in their latest cute outfits while his wife made breakfast in their Rockland County split-level. Then, on Saturday, Juan Rodriguez, 39, was hauled handcuffed before a judge, charged with the babies’ hot-car deaths. He forgot to drop them off at their day care Friday morning, Rodriguez has told cops — and didn’t realize they were still in the back seat when he parked at the Bronx hospital where...