Dec. 6 was a a day of mixed emotions for students in the Ohio Northern University College of Engineering, but a good day for 4 Paws For Ability.

This fall ONU students in the College of Engineering became involved in training Viking, a now nine-month-old golden retriever.

MORE PHOTOS AT BOTTOM OF STORY.

Viking graduated from the program on Friday, and according to the department’s Facebook, “We had to say goodbye to Viking. One of his handlers, civil engineering student Matt Stroh, brought Viking to the Dean's Office for some final goodbyes.”

Viking is now on a journey to become a service dog for disabled child.

The Icon posted a story about Viking in October. Click here to read that story.