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Ari Sen Profile picture
Ari Sen
@ArijitDSen
Award-winning Investigative Data Journalist @CBSNews. Ironman. Bojangles expert. Priors @dallasnews, AI @pulitzercenter @NBCNews @asheville @ucbsoj @unchussman
Jul 11, 2023 • 12 tweets • 3 min read
THREAD: Dallas police ignored a decade of warning signs about Officer Christopher Hess' brutality.

Then he killed someone.

My latest investigation with @milesmoffeit @danachewy:
interactives.dallasnews.com/2023/black-and… @milesmoffeit @danachewy Of Hess' 10 excessive force cases one stands out.

In 2014, Hess and his partner appeared to illegally stop a Black man named Terry Morris.

Then over the next 5 minutes, they relentlessly punched, kicked, kneed and contorted him.

Our experts called it "torture."
Sep 20, 2022 • 11 tweets • 6 min read
THREAD: The biggest story of my life is finally out. 

Since 2019, I’ve been investigating a monitoring tool called Social Sentinel. They bill it as a way to help save students’ lives. 

I found it had another purpose — surveilling campus protests. bit.ly/3xxFWM7 The company says its service isn’t a surveillance tool.

But universities used it to track protests over a Confederate statue, student criticism of university officials and even a town hall with a US Senator.