After the death of a Rollin 100 gang member, Los Angeles gangs have issued a challenge to kill 100 people as fast as possible. One of the first victims appears to be a 4-year-old boy. Under the hashtag #100Days100Nights, users on Instagram and Twitter are issuing a stark warning: Two Los Angeles gangs are betting which one can kill 100 peoplein a gang, or innocentwithin the next 100 days.