Whoever conspires to commit any offense under paragraph (1), (2), or (3) shall, if death or serious bodily injury (as defined in
section 2246 of this title) results from the offense, or if the offense includes kidnapping or an attempt to kidnap, aggravated sexual abuse or an attempt to commit aggravated sexual abuse, or an attempt to kill, be imprisoned for not more than 30 years, fined in accordance with this title, or both.