People v. Alegre

Summary

Gilbert Alegre, a security guard, was charged with Murder for shooting co-worker Ronald Pascua at their workplace following a heated argument. The RTC and CA convicted him of Murder, finding treachery present. However, the Supreme Court reversed, ruling that treachery was absent since the killing was preceded by a heated altercation and was an impulse act rather than a deliberate, planned attack. The Court reduced the conviction to Homicide, emphasizing that chance encounters and spur-of-the-moment crimes are generally not attended by treachery. The case clarifies the distinction between Murder and Homicide based on the presence or absence of qualifying circumstances, particularly treachery in workplace violence situations.