Tim McCarthy, who has represented Mattapan, Hyde Park and Roslindale on the city council since 2013, announced Thursday he's decided not to run for re-election this fall - two weeks after saying he would make one last run.

McCarthy wrote on Facebook that watching his wife leave a government job for the private sector, one son leave college to join the army and another graduate Catholic Memorial and head off to college, all in one year, made him ponder his life and future:

Being a member of the Boston City Council has been an incredible adventure and it has been a pleasure to serve the people of Boston. I have been a part of history, and have worked with so many great people, organizations and community groups. I have overseen so many aspects of city government during my 26+ years, and believe I have made a positive impact on the neighborhoods and people that I have served. I have worked to secure millions of dollars for District 5 over 6 years and $38 million in capital funding this year alone. My team has endeavored with you, the community, to make District 5 a better place to live, work, and play. After a great deal of reflection and discussion with my family over Christmas break, I feel that it is time for me to make a change, and to move on to my next adventure, whatever that might be. Therefore, I will not be seeking reelection in 2019. It has been an honor to serve as your City Councilor. I will continue to serve throughout the remainder of my term this year. I will also be fully engaged in helping to select our next representative, to ensure the continuation of the great work my office has been part of since elected.

There are currently two announced candidates for his seat: Ricardo Arroyo of Hyde Park and Yves Mary Jean of Roslindale.