It's been exactly two months since a Virginia Tech police officer was shot and killed on the school's campus.
There is still no known motive or connection between Officer Deriek Crouse and his killer Ross Ashley, according to state police.
On every routine call, on every drive through campus, Officer Deriek Crouse is very much on the minds of his former colleagues.
"It serves as a wake-up call for everyone else that safety is the number one key," said Major Kevin Foust, with the VT Police department. "To be constantly prepared for anything that might happen and take nothing for granted."
For every officer, the healing process is different. But Major Kevin Foust says just being on campus and interacting with the students and staff is a start.
"Students will just walk up to you and say that they're sorry for what happened and express their support for the police department," said Foust. "They don't need to do that, but it's just been incredibly, it's just been nice. It's been nice."
Chief Wendell Flinchum says it's been a very tough couple of months.
"I think about it myself. Why? Why Deriek? And I don't think we'll ever know those answers," said Chief Flinchum. "There are so many reminders that creep up day after day. When you don't expect it, you think about Deriek and you think about what happened."
But Chief Flinchum says he's grateful for the outpouring of support for both his police department and for Crouse's family.
"It's been overwhelming, and very, very much appreciated," said Chief Flinchum. "And quite honestly it's probably what's helped many of us get through this process, is that support."
State police are still investigating the murder-suicide.