A man who was charged with murder in the fatal stabbing of an activist on a Brooklyn street in 2023 has pleaded guilty to the killing, which prosecutors called “random and unprovoked.”

The man, Brian Dowling, 20, appeared on Wednesday before Justice Danny K. Chun of State Supreme Court in Brooklyn and accepted an offer of 20 years to life in prison in exchange for the guilty plea in the death of the activist, Ryan Carson, 32. He will be sentenced on Feb. 19, according to a news release from the Brooklyn district attorney’s office.