Law & Order: SVU fans are no strangers to beloved SVU characters being written off the show. However, that conceit doesn't take the sting out of seeing a fan favorite leave. In particular, SVU's Assistant District Attorney position has regularly turned over every few seasons. But the loss of Raúl Esparza's ADA Rafael Barba remains one of the show's hardest departures.
Source:https://www.cbr.com/law-order-svu-why-raul-esparza-barba-left/