An "infamous crime" refers to a criminal act that is widely known and often evokes strong public outrage or fear. These crimes typically involve severe violations of the law, such as murder, robbery, or sexual assault, and are characterized by their shocking nature or the notoriety of the individuals involved. The media often plays a significant role in amplifying the public's awareness of these events. Examples of infamous crimes include the O.J. Simpson murder case and the Jack the Ripper murders. Such cases often lead to extensive investigations and can result in high-profile trials. The societal impact of these crimes can lead to changes in laws, increased security measures, and ongoing discussions about crime prevention.