NEWTOWN, Conn. — Investigators say they believe Adam Lanza tried to buy a gun at Dick’s Sporting Goods in Danbury on Tuesday, but was unsuccessful, a law enforcement source with knowledge of the investigation told CNN’s Susan Candiotti.
Employees at the store – some 12 miles from Sandy Hook Elementary – have been interviewed and have searched the store’s surveillance cameras for evidence that Lanza had been there.
Also, a second law enforcement source has said that Lanza was involved in some kind of trouble at the school earlier this week. The source said the altercation was between Lanza and four adults, and occurred Thursday, the day before the shooting.
Three of those adults, the source added, were killed during Friday’s shooting.
The source was unable to say whether the disagreement took place inside or outside the school, but said that it apparently had something to do with him trying to enter the school.
Earlier, a law enforcement official told CNN’s Carol Cratty that Lanza had some sort of altercation with people at the school a few days before the shooting.