Sergeant Dic Donohue announced Tuesday that he is retiring from the MBTA Transit Police Department.

Donohue was critically injured during the pursuit of Tamerlan and Dzhokhar Tsarnaev in Watertown after the Boston Marathon bombing.

"Following my injury, I committed myself to returning to active service in the department. It took nearly two years to accomplish that goal, fighting through pain and limitations, but I had a lot of help from some amazing doctors, my family, and my fellow officers," Sgt. Donohue said. "I did not want it to be taken from me without a fight. Unfortunately, I must now acknowledge the extent of my injuries and limitations. Physically, I cannot perform at 100 percent and must do what is right for myself, my co-workers, and my department. Therefore, I will step away from the job that I love so much."

Sgt. Donohue was shot in Watertown on April 19, 2013. His injuries were very serious and he nearly died because of all of the blood he lost.

Donohue recently accepted an adjunct professorship at a local college where he will be teaching criminal justice. He and his wife Kim are expecting a baby boy in April and he will be their second son.

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