she says they don't have to prove a motive but certainly they would like to know what it is. and right now there is no tie between the suspect and this police officer other than what the sheriff's speculated on was that the officer was in uniform. andrea, back to you. >> janet shamlian, we just saw in the picture the officer leaves behind a wife and two young children. thank you for your reporting. tributes continue today for 24-year-old alison parker and 27-year-old adam ward. the two journalists shot and killed during a live broadcast last week. this morning their station wdbj posted this photo with the tweet, we love our morning family. we will get through this together. and virginia tech's football team announced today they plan to honor ward and parker by wearing a special helmet sticker for their season opener against ohio state this weekend. it will feature the number 7, a tribute to their tv station, and colors teal and maroon, parker and ward's favorite colors. ward was a virginia tech grad