Yes...I’ll mention one is movie critic Jeffrey Lyons who was a fan of Ted Williams back in the day and thus a Sox fan despite being from NYC. He attends Sox-Yanks games and Red Sox radio mentions he’s there, etc.
BLOHARDs—Benevolent Loyal Order of Honorable and Ancient RedSox Diehard Sufferers of NY
When I was 11 my Dad took me to a Sox-Yankees game at Yankee Stadium.I was rooting like crazy for the Sox and couldn't understand the dirty looks I got from those around me.I knew nothing of the rivalry back then.
>> the violence that Red Sox fans are capable of
but in all seriousness in the opposite way I can think of one case where a Sox fan was killed by a Yanks fan—run over—
>>A raging Yankees fan accused of running down a Red Sox fanatic by plowing her car into him after he chanted “Yankees suck” only meant to “scare” him, the accused killer allegedly told police. Ivonne Hernandez, 43, gunned her car at Matthew Beaudoin, 29, and his friends after an argument spilled out of Slade’s Food & Spirits in Nashua, N.H., early Friday, witnesses and police said.
convicted later of second degree murder
http://www.nydailynews.com/sports/baseball/yankees/new-york-yankees-fan-convicted-second-degree-murder-hitting-killing-red-sox-fan-car-article-1.169404
I also found the sentence was upheld in a NH court. She got 20 to 40 years.