Tyra Patterson was sentenced in December 1995 to spend the rest of her life in prison, for having participated in a robbery of a group of white girls in a car the previous year. At the end of the robbery, Michelle Lai was shot in the head and killed.
In an affidavit from 2013, LaShawna Keeney, the confessed shooter, expressed remorse for the “horrible crime I committed”. She went on to say that Patterson had not been involved in the robbery but had tried to stop it: “She walked up to me and told me to leave the victims alone.”
Source: A tale of two Tyras Guardian, 14 Jan 2016