Hope they got the right guys.

After nearly 20 years of disappointment and dead ends, authorities charged two men with murder in the cold-case killing of hip hop pioneer Jam Master Jay, who was gunned down in his Queens music studio in 2002 during what prosecutors described as a drug-related homicide.

Ronald “Tinard” Washington, 56, and Karl Jordan Jr., 36, were slapped with murder charges for storming into Jay’s Jamaica, Queens, studio on Oct. 30, 2002, ordering the other people to the ground at gunpoint and fatally shooting the 37-year-old Jay, whose real name was Jason Mizell, officials said.