A man who attacked a neighbor on the 100 block of Mountain View Avenue on Sunday, prompting a standoff with police, was found dead in his home after officers entered seven hours later, police said.

The standoff ensued after Richard Andrew Glanzman Sr., 55, broke into his neighbor's home about 11:45 a.m. and attacked a 32-year-old Bay Area woman who was visiting for the Wharf to Wharf race, Santa Cruz Deputy Chief Steve Clark said. Glanzman tried to strangle and sexually assault the woman, who had been napping, Clark said. She fought Glanzman off and ran to a neighbor's home to call police, Clark said.

Police got the attacker's description and learned it matched that of a neighbor who lived at 112 Mountain View Avenue. Officers went to the home and spoke with Glanzman's father, who allowed officers in to search the home, Clark said.

When officers entered the suspect's bedroom, they saw an opened gun case and live rounds of ammunition spilled on the floor, and realized the suspect was hiding in the room, Clark said. Officers retreated from the house, fearing he was armed and dangerous, Clark said. The father fled the home as well.

Police set up a perimeter around the home, evacuated 20 homes around the 100 block of Mountain View Avenue, and tried various methods to contact the man. None were successful, Clark said.

Parts of Cayuga Street and Hiawatha Avenue also were blocked off.

Police obtained an arrest warrant and search

The woman who was attacked was treated at Dominican Hospital, Clark said.

"Our concern now is caring for the victim and making sure she gets the care she needs, and returning the neighborhood to normalcy," he said. "She was a true victim in that she was minding her own business and attacked by an intruder inside a home."

Eric Poulsen, who was sitting on a curb on Mountain View Avenue on Sunday evening, said he lived in the home where the woman was attacked. He said he and a female housemate rent from Glanzman's father.

The victim, who was visiting his housemate, was attacked after her friend went to work and he went out, Poulsen said.

Glanzman often spoke to Poulsen's housemate, Poulsen said.

"It was clear he had a crush on her, but I certainly didn't see this coming," he said. "His father is going to be devastated."

Glanzman helped his dad with the two properties, but did not have another job, Poulsen said. Poulsen believes Glanzman used a key to get into the house.

"(Glanzman) was a nice guy," he said. "I knew him casually. He would bake stuff for us."

Poulsen and other neighbors were kept from their homes for hours. One group stood at the corner of Mountain View Avenue and Logan Street about 7 p.m., sharing a pizza.

Neighbor Dulcie Herr said the suspect was always very friendly and would say hello.

"He seemed very nice," she said. "It's so sad."