There is a chance that Lee Boyd Malvo could eventually get paroled since he was 17 at the time when he killed all of those people.
"Since then, the Supreme Court’s jurisprudence on juvenile murderers has changed. It said the death penalty was off-limits for juveniles, and in 2012 said that mandatory life sentences without the possibility of parole were unconstitutional for those under 18."
Here are some old Letsrun threads:
http://www.letsrun.com/forum/flat_read.php?board=1&id=28693&thread=28681#28693
http://www.letsrun.com/forum/flat_read.php?board=1&id=32575&thread=32575#32575
http://www.letsrun.com/forum/flat_read.php?thread=28844
http://www.letsrun.com/forum/flat_read.php?board=1&id=32993&thread=32764#32993
http://www.letsrun.com/forum/flat_read.php?board=1&id=3294110&thread=3293890#3294110