A federal judge has declined to grant more time to defense attorneys to prepare arguments against the death penalty for Dzhokhar Tsarnaev, the alleged Boston Marathon bomber.

US District Court Judge George A. O’Toole Jr. said he wouldn’t intervene in an internal process that the US Department of Justice has set up to determine whether prosecutors should pursue the death penalty against a defendant.

Under the process, whitch takes place before a trial, defense attorneys can submit input to the US attorney’s office, which then sends its recommendation, along with the defense attorneys’ input, to the Justice Department in Washington, where the attorney general makes the ultimate decision on whether to seek the death penalty.

Tsarnaev, 20, faces numerous federal charges, including some that could bring him the death penalty, in the twin bombings near the Boston Marathon finish line on April 15 that killed three people and wounded more than 260 others.