Man shoots 2 men because he thought they were immigrants

[xocetaceans]

46. The sentence in the OP is only the federal sentence: he's already been sentenced in Virginia under Virginia law.

So, it is largely irrelevant if Trump [I agree but HWSNBN is too obscure and too long] were to pardon him: he will still be serving life in Virginia.

Q: Does the President have authority to grant clemency for a state conviction?

A: No. The President’s clemency power is conferred by Article II, Section 2, Clause 1 of the Constitution of the United States, which provides: “The President . . . shall have Power to grant Reprieves and Pardons for Offenses against the United States, except in Cases of Impeachment.” The President’s authority to grant clemency is limited to federal offenses and offenses prosecuted by the United States Attorney for the District of Columbia in the name of the United States in the D.C. Superior Court. An offense that violates a state law is not an offense against the United States. A person who wishes to seek a pardon or a commutation of sentence for a state offense should contact the authorities of the state in which the conviction occurred. Such state authorities are typically the governor or a state board of pardons and/or paroles, if the state government has created such a board.


[A note from further down the FAQ]:
In the federal system, commutation of sentence and pardon are different forms of executive clemency, which is a broad term that applies to the President’s constitutional power to give leniency to persons who have committed federal crimes.

https://www.justice.gov/pardon/frequently-asked-questions