Dar es Salaam, April 18 -- USA: LUIGI M. was indicted Thursday on a federal murder charge in the killing of UnitedHealthcare CEO Brian Thompson outside a hotel in New York City last year.

The four-count indictment was returned by a federal grand jury in Manhattan, and includes a charge of murder through the use of a firearm, which carries the possibility of the death penalty.

He faces two counts of stalking and a firearms count as well.

M. has been separately charged by New York state prosecutors in Thompsons murder and awaits trial.

M., who is 26 years old, has pleaded not guilty to the state charges, which carry a maximum punishment of life in prison.

Thursdays federal indictment raises the stakes for M. because the ...