Liberty Mitchell, 21, has had her prison sentence increased following a fatal crash in which she killed two people. According to reporting, Mitchell was driving a Mini Cooper at around 96 miles per hour and crashed into three other vehicles. The crash resulted in the deaths of two individuals and injuries involving multiple cars. Sources also state that Mitchell had been filming herself speeding for Snapchat at the time, which prosecutors and courts cited as part of the circumstances of the driving behaviour. The Daily Mail reports that the updated sentence reflects the seriousness of the incident and the impact on those affected. Details about the exact original sentence, the final term imposed, and the full legal outcome are not included in the provided excerpts, but the coverage indicates that an appeal or review leads to a higher punishment than previously. The story is presented as a case linking reckless driving, use of social media, and fatal consequences.