What if someone tries to destroy someone’s will? Can they get in trouble for that?It is illegal to destroy someone’s will. If you're found guilty of destroying, hiding, or damaging someone’s will, you can face up to 5 years in prison and fined hundreds, or even thousands, of dollars. The amount of fine will be decided by the court according to D.C. Code § 22-3571.01.
You can have a look at the relevant law –

D.C. Code § 18-112 reads:

“Whoever, during the life or after the death of the testator, for a fraudulent purpose, takes and carries away, or destroys, mutilates, or secretes, a testamentary instrument, shall be imprisoned not more than five years. In addition to any other penalty provided under this section, a person may be fined an amount not more than the amount set forth in [§ 22-3571.01].”

D.C. Code § 22-3571.01reads:

“Fines for criminal offenses.
 
(a) Notwithstanding any other provision of the law, and except as provided in § 22-3571.02, a defendant who has been found guilty of an offense under the District of Columbia Official Code punishable by imprisonment may be sentenced to pay a fine as provided in this section.
(b) An individual who has been found guilty of such an offense may be fined not more than the greatest of:
     (1) $ 100 if the offense is punishable by imprisonment for 10 days or less; (2) $ 250 if the offense is punishable by imprisonment for 30 days, or one month, or less but more than 10 days;
     (3) $ 500 if the offense is punishable by imprisonment for 90 days, or 3 months, or less but more than 30 days;
     (4) $ 1,000 if the offense is punishable by imprisonment for 180 days, or 6 months, or less but more than 90 days;
     (5) $ 2,500 if the offense is punishable by imprisonment for one year or less but more than 180 days;
     (6) $ 12,500 if the offense is punishable by imprisonment for 5 years or less but more than one year;
     (7) $ 25,000 if the offense is punishable by imprisonment for 10 years or less but more than 5 years;
     (8) $ 37,500 if the offense is punishable by imprisonment for 15 years or less but more than 10 years;
 
     (9) $ 50,000 if the offense is punishable by imprisonment for 20 years or less but more than 15 years;
     (10) $ 75,000 if the offense is punishable by imprisonment for 30 years or less but more than 20 years;
     (11) $ 125,000 if the offense is punishable by imprisonment for more than 30 years; or
     (12) $ 250,000 if the offense resulted in death.
(c) An organization that has been found guilty of an offense punishable by imprisonment for 6 months or more may be fined not more than the greatest of:
     (1) Twice the maximum amount specified in the law setting forth the penalty for the offense;
     (2) Twice the applicable amount under subsection (b) of this section; or
     (3) Twice the applicable amount under § 22-3571.02(a).”