‘Blue Bloods’ Fans Are Seriously Worried After Seeing a New Cryptic Instagram Post

• Lenny Ross was Frank Reagan’s first partner and longtime friend.
• In season 6, Lenny shares that he’s writing a tell-all book about his time on the job—including his time with Frank, which prompted Frank to ask him to keep his distance.
• Lenny reappears in Season 8, where he was found guilty of shooting a stripper and bouncer at a night club. Since then he’s been largely under the radar.
• In a recent Blue Bloods Instagram post, however, he seems to be back.

Let’s be honest: Sometimes it can be tricky to keep track of all the characters on Blue Bloods. Sure, we all know and love Frank (

Tom Selleck), Danny (Donnie Wahlberg), Erin (Bridget Moynahan), Jamie (Will Estes), Pop (Len Cariou) as they’re in almost every episode of the show. The same goes for the mayor. Some guest starring characters, however, can be easier to forget. One that isn’t, however, is Lenny (Treat Williams).