A suspect has been charged with murder and arson in connection with a Fort Greene resident's death in a fire earlier this month.

Dondre Richardson, 33, was charged with second-degree murder and arson in the death of Lamont Litman, whose body was discovered inside his Adelphi Street apartment which had been set on fire January 20th, officials said. Litman, who was also known as L. Antonio Litman, was found in the building's lobby with stab wounds.

Richardson's last known address, according to the NYPD, was the Manhattan Psychiatric Center, a New York State Office of Mental Health facility, on Wards Island. He was taken to Woodhull Hospital after his arrest Tuesday night though a spokeswoman for the NYPD did not say why.

Police sources told the Daily News that Richardson began acting erratically during questioning. He was discharged from Woodhull Hospital into the custody of the 88th Precinct Tuesday night, according to NYPD.

The NYPD spokeswoman said it was not yet clear how the two men knew each other.

Litman, 55, was known for his philanthropy and founded a charity, Virginia’s House of Hope, that provides meals and financial support to the homeless, students, and families in need.

"In 2006, Antonio founded Virginia's House of Hope (VHOH) in honor of Mrs.Virginia Maitland Sachs," the charity's website said. "VHOH distributes school supplies, toys, food and clothing to families in the New York area. It also provides scholarships to young people from underprivileged backgrounds who wish to pursue a career in the maritime industry. He is survived by family, friends and associates, who will miss him greatly but will carry on his work for our group of companies and for Virginia's House of Hope. Antonio maintained a network of friendships all over the world; he touched a great many lives and made the world a better place for so many."