in columbia, i m don harrison for abc2 news. this was the third homicide in columbia this year. a frostburg state university player will be remembered. there will be a memorial service for 22-year-old derek sheedy. he died from a helmet to helmet contact. he died at shock trauma. doctors concluded the hit resulted in traumatic brain injury. we have a complete concussion resource guide right there on our website. it s great for parents, coaches and players to learn all the warning signs of a concussion. you ll find all the information at abc2news.com/concussion. take a look at tonight s top stories it. is election day. mayor stephanie rawlings-blake is running against a crowded feel including catherine pugh, otis rolley, jody landers, and 2% of the voters took part. it is 10 years in prison for teonna brown, the teen who attacked chrissy polis, a transgendered woman. in court she apologized and asked for a second chance. the judge responded by saying there s no excus