Laurence Cooper, the homeless man stabbed repeatedly in the heart and throat last month in front of Dynasty Gallery on Mass. Ave., died Wednesday at Mass. General Hospital.

Cooper was stabbed on Nov. 22 after a furious argument between himself and another person whom police described as a middle-aged, stocky white male.

He was rushed to the emergency room at Mass. General Hospital shortly after 6:40 p.m., where he was treated for a two inch by one inch laceration to the throat.

Cooper was transferred to the Intensive Care Ward the next evening.

He remained unconscious and in critical condition until his death at 4:04 p.m. on Wednesday, according Mass. General spokesperson Michelle E. Marcella.

There have been no arrests in connection with the stabbing. But a joint investigation is underway between the Cambridge Police, the Middlesex County District Attorney's Office and the State Police, said Cambridge Police spokesperson Frank T. Pasquarello.

Meanwhile, a small memorial with candles, several bouquets of flowers and two commemorative posters has been constructed at the site where Cooper was attacked.

"He was homeless and spent many days sitting on this block," the poster reads. "Many people in the community knew him."

The poster also decried the lack of publicity the crime had attracted.

"To those who [knew Cooper]--have you noticed how little media attention this crime has received? Is the life of a homeless person not valuable enough for justice?" it reads.

Middlesex County District Attorney Martin F. Murphy could not be reached for comment yesterday.