Ronny Hallin, Sister of Garry & Penny Marshall, Dies at 88

Ronny Hallin, sister of the late Garry and Penny Marshall who produced and appeared in Laverne & Shirley, has died. She was 88. According to Ronny’s daughter Penny Hallin, the beloved sitcom producer “passed away peacefully at home” on Tuesday, Oct. 27. Born Jan. 2, 1938 in New