Speaking in Cancun, where he is promoting his latest movie Elysium, Boston-native Matt Damon expressed his horror and

shock at the fact that the Boston marathon bomber, 19-year-old Dzhokhar Tsarnaev, has attended Cambridge Rindge and Latin high School, which he and his friend Ben Affleck had graduated from 20 years ago.

“I literally found that out yesterday before I flew out down here,” Damon said solemnly. “I was in the kitchen and heard on CNN my history teacher, Larry Aaronson, who is a good friend of mine, saying that he knew the bomber very well and that he was very compassionate. So everybody is very confused. I’m sure there’s a lot we don’t know yet. Presumably, he is still alive, so presumably he is going to explain what he thinks he was doing.”

Chechnya-born Dhakhar Tsarvaev is currently recovering in hospital from the wounds he sustained during a shootout with the police, which lead to the killing of his 26-year-old brother, Tamerlan, and a police officer. He and his brother were caught on surveillance cameras carrying the backpack that contained the explosives.

“Marathon Monday is a really big deal, the kids don’t have to go to school and everybody goes. It’s a big community event and these guys put the bomb in the middle of this community celebration and they were part of this community. That’s what’s really just unbelievably disturbing. It’s insane,” he exclaimed incredulously.

Another Bostonian, Mark Wahlberg, who is also in Cancun, expressed his outrage at the bombing. “It’s f***ing disgusting,” he said. Damon concurred and added “It’s incredible that anybody would do that. I’m very confused by it, and it’s really upsetting on a whole number of levels, but presumably we will all get some clarification from this kid.”

The teenager is in stable condition but is still unable to communicate.