I've not read anywhere that he was charged with driving under the influence. Cited for underage drinking but not DUI.
He was charged with speeding, underage drinking, and driving after consumption under the age of 21. This means he wasn't drunk but had allegedly had a drink.
I've seen often enough dummy #1 take off at a high rate of speed and dummy #2 trying to catch up. The only person responsible here is the girl who was driving the vehicle that crashed.
As of last week I think it's been mostly resolved. This doesn't say anything about Rice and the speeding allegation.
Football player Zachary Rice's case was disposed last month. He was accused of driving the second car. He pleaded guilty to possession of alcohol by someone younger than 21, and driving after consuming alcohol. Court records show he completed 52 hours of community service and a driving course.