Maryland ? Berwyn Heights Mayor Cheye Calvo got home from work, saw a package addressed to his wife on the front porch and brought it inside, putting it on a table.

Suddenly, police with guns drawn kicked in the door and stormed in, shooting to death the couple’s two dogs and seizing the unopened package.

In it were 32 pounds of marijuana. But the drugs evidently didn’t belong to the couple.

Police say the couple appeared to be innocent victims of a scheme by two men to smuggle millions of dollars worth of marijuana by having it delivered to about a half-dozen unsuspecting recipients.

The two men under arrest include a FedEx deliveryman; investigators said the deliveryman would drop off a package outside a home, and the other man would come by a short time later and pick it up.

Now, federal authorities say they’re looking into how local law enforcement handled the July 29 raid. FBI Special Agent Rich Wolf said late Thursday that the bureau had opened a civil rights investigation into the case.

A furious Calvo said earlier Thursday that he and his wife, Trinity Tomsic, had asked the government to investigate.

“Trinity was an innocent victim and random victim,” Calvo said outside his house in this middle-class Washington suburb.