NEW YORK -- The man who hacked a female psychologist to death in her Upper East Side office with a meat cleaver and knife and attacked the 70-year-old colleague who tried to save her late Tuesday remains on the loose, police said Wednesday.

Police released a sketch of the attacker, described as a white man wearing a baseball cap, sneakers and a green jacket. They said video cameras filmed him leaving and entering the medical offices on East 79th Street Tuesday evening.

Blood covered the walls and floor of the office where psychologist Kathryn Faughey, 56, was attacked, police said.

Her colleague, Dr. Kent Shinbach, ran to her side when he heard her screams and struggled with the attacker for at least 10 minutes, police said. At one point, the suspect pinned Shinbach against the wall with a chair and stole $90 from his wallet.

Police said they found the desk overturned and papers scattered everywhere in the office where Faughey died.

"The condition of the room was that of a fierce struggle," said NYPD spokesman Paul Browne.

Based on security video from the building, the suspect arrived five seconds after 8 p.m. through the front door and left via a basement exit basement exit at 8:54 p.m., police said. He left behind two suitcases -- one containing eight knifes and the other filled with women's clothes, including slippers and a blouse, and an adult disposable diaper, police said.

When he arrived, he told the doorman he was there to see Shinbach, police said.

The receptionist had already left and only a female patient was in the waiting room at the time, officials told WNBC.

Shinbach suffered wounds on his hands and face. He is listed in serious condition at New York Hospital.

Faughey died from wounds to her head, face and a gash to the back of her head and torso.

The office is in a bustling neighborhood just blocks from a major hospital complex, police said.

The attack sent shockwaves through the city's large community of mental health professionals.

"This is, I think, an extraordinary occurrence," said Sharon Brennan, a psychologist in Manhattan and a spokeswoman for the New York State Psychological Association. "It has had a shocking impact on the whole New York community."

Alexandra Pike, who lives across the street in the same apartment building where the victim lived, allowed a news photographer to shoot the scene from her family's apartment and said she used his telephoto lens to look into the victim's office.

"You could see there were shades torn down, there was overturned furniture. Papers were strewn all over, and you could see blood all over the place," said Pike, a 20-year-old journalism student.

Faughey, a licensed psychologist, described herself as a specialist in cognitive behavioral therapy, which focuses on changing thoughts that cause feelings or behaviors.

On her Web site, Faughey said she treated patients for relationship issues, coping with breakups, anxiety, panic attacks, stress over job changes and online intimacy.

In an interview with The New York Times in 2004, Faughey offered some advice on breaking up in a digital age: "In the old days it was burn the letters," she said. "Today, clear the hard drive."

Faughey was remembered fondly by her neighbors. Pill Lee, who works for a nearby dry cleaner, described her as a quiet, smiling woman whose favorite outfit was a black pantsuit and white blouse.

"She was very pleasant, very friendly, but she was quite private and reserved," said Elaine Hartstein, whose husband was Faughey's dentist and practiced in the building where the victim lived.

The slaying unnerved residents in the affluent neighborhood.

Linda Elliott, a resident of the building where the attack occurred, said, "Everyone in the building is very nervous, because we know that this person is loose. It's very frightening."

Serious attacks by patients on their mental health providers are rare, but they do happen, although usually in institutions that see more seriously ill patients.

A psychiatrist in Omaha died from head injuries in August, several days after a patient with a grudge and a history of violence attacked him as he arrived at a medical center.

It is common for therapists who see patients in their homes or private offices to install alarm systems, or even help buzzers, in the event that a patient starts to lose control.

In Manhattan, these safety systems are often complemented by the usual security systems for office buildings, which include doormen and video cameras.

"Safety is always a concern," Brennan said. She added that therapists are thoroughly trained in how to assess a patient's potential for violence, and would normally see patients in a private setting only if they had determined that the safety risk was low.