Updated

A former police officer in Northern California is being investigated for collecting a disability pension while he is currently working for the FBI.

Oakland city officials are looking into how former police officer Aaron McFarlane receives more than $52,000 in disability benefits from the city while he has been working as an FBI special agent in Boston.

Oakland spokeswoman Karen Boyd says the city is investigating the matter.

McFarlane's name surfaced after he was recently identified as the federal officer who last year shot and killed Ibragim Todashev, a friend of suspected Boston Marathon bomber Tamerlin Tsarnaev.

The 41-year-old McFarlane retired from the Oakland Police Department on medical disability in 2004, four years after he joined the department as a patrol officer. Those on disability retirement are banned from doing similar work for any other agency in California.

McFarlane joined the FBI in 2008.