Under what circumstances is a person guilty of second-degree murder?

Second-degree murder in Missouri encompasses several scenarios that illustrate the intent and circumstances surrounding the act of taking another person's life. A person is guilty of second-degree murder if they knowingly cause the death of another individual. This demonstrates that the individual had awareness or consciousness of their actions and the likely consequences.

Additionally, if someone causes serious physical injury with the intent to kill or cause serious harm, this can also be considered second-degree murder, particularly if the injury ultimately leads to the victim's death. This aspect reflects the actor's intention and premeditated mindset toward the victim, aligning with the definitions surrounding malice and intentional harm in Missouri law.

Furthermore, the felony murder rule applies to second-degree murder, meaning if a death occurs during the commission of a dangerous felony—even if the perpetrator did not intend to kill—this can satisfy the criteria for second-degree murder. This captures the essence of accountability where the act of partaking in a violent crime results in someone's death.

Therefore, all these scenarios contribute to the classification of second-degree murder under Missouri law, as they all embody different aspects of intent and circumstances regarding causing a death. This comprehensive view clarifies why the correct response encompasses all of these considerations.