Carmelo and La La Anthony spent part of La La's birthday Monday visiting the home of a slain 15-year-old boy to provide condolences and gifts to the murdered child's family.
Lesandro Guzman-Feliz was brutally stabbed to death after being dragged out of a corner store last week.
When La La was contacted by the boy's sister and informed he was a huge Melo fan ... she brought the NBA superstar right to his fam's doorstep.
"This is what I wanted to do for my birthday today," La La said of the trip.