Missouri Revised Statutes

Mo. Rev. Stat. § 565.024 (2026)

Involuntary manslaughter, first degree, penalty

✓ current as of May 2026
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  565.024.  Involuntary manslaughter, first degree, penalty. — 1.  A person commits the offense of involuntary manslaughter in the first degree if he or she recklessly causes the death of another person.

  2.  The offense of involuntary manslaughter in the first degree is a class C felony, unless the victim is intentionally targeted as a law enforcement officer, as defined in section 556.061, or the victim is targeted because he or she is a relative within the second degree of consanguinity or affinity to a law enforcement officer, in which case it is a class B felony.

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(L. 1983 S.B. 276, A.L. 1984 S.B. 448 § A, A.L. 1986 H.B. 1596, A.L. 1999 S.B. 328, et al., A.L. 2005 H.B. 972 merged with S.B. 37, et al., A.L. 2005 1st Ex. Sess. H.B. 2, A.L. 2006 S.B. 872, et al., A.L. 2008 H.B. 1715, A.L. 2014 S.B. 491, A.L. 2017 S.B. 34)

(1992) Definition of "person" in section 1.205, RSMo, which includes unborn children is applicable to other statutes and court concludes that it applies at least to this section, the involuntary manslaughter statute.  State v. Knapp, 843 S.W.2d 345 (Mo. en banc).

(2018) Amended version of section, which repealed provision requiring prisoner to serve a mandatory minimum of eighty-five percent of sentence before becoming parole eligible, was not retroactively applicable to prisoner entering Alford plea under prior version of section.  Fields v. Missouri Bd. of Probation and Parole, 559 S.W.3d 12 (Mo.App. W.D.).

Notes of Decisions
Cited in 192 cases (9 in the last 5 years), 1984–2025 · leading case: Webb v. State, 334 S.W.3d 126 (Mo. 2011).
Webb v. State, 334 S.W.3d 126 (Mo. 2011). · cites it 26× “See § 565.024, RSMo Supp.2007; § 558.011.1(2), RSMo Supp.”
State v. Knapp, 843 S.W.2d 345 (Mo. 1992). · cites it 23× “We granted transfer to determine whether causing the death of this unborn child is causing the death of a “person” within the meaning of the involuntary manslaughter statute, § 565.024, RSMo 1986. The judgment is affirmed.”
Fields v. Mo. Bd. of Prob. & Parole, 559 S.W.3d 12 (Mo. Ct. App. 2018). · cites it 18× “In accordance with section 565.024 RSMo, you are not eligible for release until serving 85% of your sentence.”
State v. Seeler, 316 S.W.3d 920 (Mo. 2010). · cites it 12× “There is a more complicated option offered in section 565.024, which allows the state to charge Seeler with involuntary manslaughter as a class B felony, which carries punishment of up to 15 years in prison.”
State v. Belton, 153 S.W.3d 307 (Mo. 2005). · cites it 5× “*309 Belton was convicted by a jury of the lesser-included crime of involuntary manslaughter in the first degree, section 565.024, RSMo Supp.1999, and armed criminal action.”
Hinnah v. Dir. of Revenue, 77 S.W.3d 616 (Mo. 2002). · cites it 4× “020, then none shall be given and evidence of the refusal shall be admissible in a proceeding pursuant to section 565.024 or 565.060, RSMo, or section 577.”
State of Missouri v. Jason C. Voss, 488 S.W.3d 97 (Mo. Ct. App. 2016). · cites it 6× “1999); see section 565.024. Therefore, in a case where the only evidence to .”
State v. West, 551 S.W.3d 506 (Mo. Ct. App. 2018). · cites it 5× “West (Defendant) appeals from the judgment upon her conviction following a jury trial for involuntary manslaughter in the first degree, in violation of Section 565.024, RSMo 2000. 1 The trial court sentenced Defendant to five-years' imprisonment.”
State v. Willis, 97 S.W.3d 548 (Mo. Ct. App. 2003). · cites it 11× “Willis”) appeals his convictions following a bench trial for involuntary manslaughter, section 565.024, RSMo 1994, and assault in the second degree, section 565.”
State v. Teer, 275 S.W.3d 258 (Mo. 2009). · cites it 4× “A jury found Teer guilty of four counts of involuntary manslaughter, section 565.024, and one count of second degree assault, section 565.”
State Ex Rel. Missouri High. & Transp. Comm'n v. Dierker, 961 S.W.2d 58 (Mo. 1998). · cites it 6× “"In an action based on fault seeking to recover damages for injury or death to person or harm to property, any contributory fault chargeable to the claimant diminishes proportionately the amount awarded as compensatory damages for an injury attributable to the claimant's…”
State v. West, 548 S.W.3d 406 (Mo. Ct. App. 2018). · cites it 6× “Factual and Procedural Background 2 The State charged West with one count of involuntary manslaughter in the first degree in violation of section 565.024. 3 The State alleged that, on July 1, 2015, West was driving a semi-truck owned by his employer on Interstate 70 in Boone…”
— Mo. Rev. Stat. § 565.024(3) — 1 case
Clayton R. Dunlap v. State of Missouri, 452 S.W.3d 257 (Mo. Ct. App. 2015).
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