Halstead fans, I just want you to know I'm grateful," wrote Soffer on Twitter.
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Soffer wrote, "I finally left it all out there.". Jay fought a suspect! Killing him with a knife.
He then turned in his badge and took another job in the army leading a squad that tracks down the worst drug cartel targets.
Marina Squerciati (aka Burgess) also tweeted: “Jesse, I love you, dude. My tears aren't fake social media stuff. A FEW TEARS."
Thanks for making things easier for me. It's been a pleasure to work with you, and I'm going to miss you."