"At this point, there was a note left".
"She was also a staple of NYC who spread good will", she said.
Spade, then known as Kate Brosnahan, and future husband Andy Spade were on a trip to Provincetown visiting friends in 1993 when the pair made a decision to name their company Kate Spade, combining her first name and his last name.
The popular handbag designer, 55, is reported to have taken her own life and left behind a note.
In a statement to the Times, the Spade family said, "We are all devastated by today's tragedy".
Kate Spade once told People that the secret to her happy marriage to Andy was "taking their vows seriously". "We would ask that our privacy be respected as we grieve during this very hard time".
She sold her shares of Kate Spade New York in 2006.
Spade, who was 55, created a line of sleek handbags in the early 1990s that created a smash.
The deal also turned Coach into a multibrand fashion house, a strategy that European counterparts such as Louis Vuitton have built their businesses on.
Her namesake business, Kate Spade New York, has more than 315 stores globally, including more than 140 in the US.
A police spokeswoman told the AFP news agency the exact circumstances surrounding her death were not yet clear.
"Her creative light and bright mind will be greatly missed", Hall wrote in a statement.
Chelsea Clinton, daughter of former U.S. President Bill Clinton, was among celebrities to mourn Spade on social media.
Kate Spade Handbags was launched in 1993, with its first store located in Manhattan's SoHo neighbourhood. I still have it. "Holding Kate's family, friends and loved ones in my heart".
If you are experiencing suicidal thoughts, you can call the National Suicide Prevention Lifeline at 1-800-273-8255, or chat with them online. Her impact on the fashion and accessories world will forever be felt by those who knew her and those who were fans of her work.