A former hip-hop record exec who converted to Orthodox Judaism was killed last night during a robbery at the Flatbush kosher-wine store where he worked, police and witnesses said.

“He was a good guy. Rock solid,” Rabbi Ezra Max said of Jamaican-born Yoseph Robinson.

Robinson, 34, was shot in the chest and arm at about 9:30 p.m. in MB Vineyards at Avenue J and Nostrand Avenue, police said. He was blasted when he tried to stop the gunman from snatching jewelry from a female friend, said a source.

More than 100 people from the Orthodox and Hasidic neighborhood gathered last night outside to pay their respects. Robinson had planned to release a book in December chronicling his spiritual journey. The killer is at large, police said.

Anyone with information about the slaying is asked to contact Crime Stoppers by calling 1-800-577-TIPS or by texting TIP577 to CRIMES.