He cast a quick spell against the door when the Aurors left to ensure privacy. Then Jake, after hearing the name of Severus Snape, found a chair in the room and dragged it over to Regulus' bed.
He straddled the chair, the medical board still in his hands.
"Severus Snape is dead, and has been so since nineteen ninety-eight. That would be twenty-six years ago, give or take some months and yes that would make the year today as two thousand twenty-four," Jake said quickly.
"I know who you are, Regulus and you have been dead for the past forty-five years. I'm also sorry to be the bringer of bad news but your parents are both deceased, as is your brother Sirius," Jake informed.
Jake gave Regulus a hard look. "The reason I am telling you all this is because the Aurors are going to be asking a lot of questions due to the fact that you have been dead these past forty-five years and after doing the diagnostic charms I have discovered the mark on your left forearm."
He paused. "The same mark that my father had." Jake hope he drove that point home clear enough. He knew Regulus was a Death Eater. "Edwin Davis was my father and he knew you. Knew you well enough to mourn you when you died. According to his journals."