Caller Tells Police He Is the Highway Sniper

In the first claim of responsibility, a man called police four times to say he was the highway shootings sniper, authorities said. At least two of the calls were disconnected.

The caller said he was the shooter several times during the calls that arrived in a two-minute span Monday, officials said.

The man said he fired at a car that day but did not claim responsibility for any of the 20 shootings since May that law enforcement officials have connected to the case.

A task force investigating the shootings along or near Interstate 270 is trying to determine whether the caller is the gunman, Franklin County Sheriff’s Chief Deputy Steve Martin said.