Dallas Police Chief David Brown will retire sooner than first thought, sources confirmed to News 8 Thursday.

News 8’s Tanya Eiserer first reported the news that Brown’s retirement, originally set for Oct. 22, will now occur Oct. 4 in order for Brown to "take advantage of some time sensitive opportunities that have been presented," according to a police bulletin posted later Thursday.

"I am confident that a strong leadership succession plan is already in place for the department and I feel comfortable in accelerating my departure date," the statement read.

Brown’s departure coinciding with when the pension board meets was also a factor in the decision, sources said early in the day.

Brown, who spent 33 years with the Dallas Police Department and over six as chief, announced Sept. 2 that he would retire. In his first public address after the decision, he said his “shelf life had expired” and that the attention he gained in the wake of a July 7 tragedy in Dallas made him feel uncomfortable.

He hasn’t announced plans for his future, but said he has received several offers.

Assistant chief David Pughes will take over as interim chief, and a permanent replacement will be chosen by the next city manager in 2017.