The Cedar Rapids Washington senior tore it open. His eyes were wide and he read it a few times.
Head Coach Kirk Ferentz hand wrote the parcel.
"It made me feel real good," the Class of 2011 product said. "I just came home from a hard practice and it was nice to see that hard work might be paying off. Now, I hope they're in contact more and this can go somewhere."
Ferentz wrote that he was impressed with what he'd seen from Carr this season and to keep doing what he has been doing. Iowa hasn't offered a scholarship. In fact, no school has stepped forward with an opportunity to this point.
"I have to admit that I'm a little surprised with how recruiting has gone," Carr said. "It's slower than I could have ever imagined. I'm just trying to be patient and stay positive. There's still a lot of time. I'm trying to stay as humble as possible and keep playing the way I've been playing. I have something to prove and I'm hoping my hard work pays off."
Carr is listed at 5-foot-9 1/2 and 175 pounds. Those probably are generous measurements. His size likely is what is holding back schools from offering.
Carr posted a 4.4-second, 40-yard dash at an elite camp this summer. He's also recorded a 37-inch vertical jump.
Durability has not been an issue this season. He's carried the ball as a running back a state-high 192 times in 2010, including 49 totes against Linn-Mar last week. He accumulated 289 yards and four touchdowns in that contest.
Iowa State has been actively recruiting Carr, he said. Assistant Coach Courtney Messingham has "been in contact every week they can call," Carr said.
Carr unofficially visited Ames when the Cyclones took on Northern Iowa. He attended a game at Northern Iowa when the Panthers faced off against South Dakota State, who also is recruiting him.
"(UNI Defensive Coordinator/Secondary Coach Chris Klienman) showed me around campus," Carr said. "But they've said the same thing as everybody else. They're still evaluating and want me to keep doing what I'm doing."
Carr said that he left a message for Ferentz thanking him for the letter.
"At least I know they're looking," said Carr, who camped with the Hawkeyes this summer. "At this point, that's all I can ask. The rest is out of my hands. I just have to keep playing."