By Dianne Gallagher, Meridith Edwards, Jamiel Lynch and Steve Almasy, CNN The former student who gunned down 17 people at Marjory Stoneman Douglas High School in Parkland, Florida, recorded his plans on three cellphone videos, saying in one that he would try to kill at least 20 people. According to newly released transcripts of the … Continue reading FL Shooter Described Plans on Video & ‘Active Shooter’ Game (Multi-Video)