He was convicted on nine felony counts on July 26, 2012,[1] subsequently removed from the city council, and served 3 years and in prison.

He was an administrator and instructor at Marist College; and an adjunct professor at John Jay College of Criminal Justice, where he lectured on racial injustice against African Americans under the guise of a course labeled “Ethnic Studies.” Seabrook was first elected to office in 1984, winning a seat in the New York State Assembly and representing a district in the Bronx that was heavily African-American.

This model program won strong bi-partisan support and recognition, and earned editorial praise from the Daily News, which declared, "If ever there was a gold medal in the war against drugs, Assemblyman Larry Seabrook should be considered.

[6] In 1991, Leonard Jeffries, the former head of the Black Studies Department at the City College of CUNY, and a professor there since 1972, expressed views many considered to be racist and anti-Semitic.

On August 26, 1991, Seabrook released a public statement of condemnation: "The recent comments by Dr. Leonard Jeffries, in my opinion, are defamatory and appear to be a base appeal to bigotry.

[7][8] In 1994, Seabrook publicly rebuked the Bronx Party Democratic County political organization run by Assemblyman George Friedman.

In 2000, Seabrook gave up his seat in the State Senate and finally challenged Engel, who fell out of favor with the Bronx Democratic Party organization.