Grammy award-winning music producer Metro Boomin paid off the mortgage for the home of Aaron Salter III and Kimberly Salter, the son and wife of a 55-year-old security guard who died a hero during the mass shooting at a Buffalo supermarket in May. Salter III expressed his gratitude on Instagram on Wednesday, praising Metro Boomin while sharing a photo of himself and his mom proudly posing on their lawn with a sign reading “Paid in Full.”

“How many producers you know look out for people when they need it most?” the elated homeowner wrote. “Gotta say thanks to my favorite producer @metroboomin. He called me and asked if he could help me during my tragic loss and did just that! No more mortgage Paid in full!!! Thanks @metroboomin, I’ll never forget what you did!”