April 19

On April 19, 1971, a California court found Charles Manson and several followers guilty of conspiracy to commit the notorious Tate–LaBianca killings. Initially handed death sentences, the convictions were overturned and replaced with life terms when California abolished capital punishment. The grisly murders of actress Sharon Tate and others shocked the nation and became emblematic of 1960s counterculture gone awry. Manson's charismatic yet manipulative persona and apocalyptic beliefs fascinated and horrified the public. His imprisonment and subsequent notoriety have left a lasting imprint on American true crime and popular culture.

Between April 18 and 19, 2020, an unidentified gunman embarked on a cross-province killing spree in Nova Scotia, Canada. The attacker used his vehicle to change firearms and evade law enforcement across multiple communities. In total, 22 people and the perpetrator lost their lives, marking the deadliest mass shooting in Canadian history. The Royal Canadian Mounted Police faced criticism for delayed public alerts during the unfolding crisis. The incident prompted calls for stricter gun control and improved emergency communication protocols. Families of the victims organized vigils and memorial services to grieve collectively. Canadian leaders expressed national shock and solidarity, leading to debates on mental health and rural policing. The tragedy spurred legislative considerations aimed at preventing similar atrocities.