UPPER WEST SIDE, Manhattan (PIX11) — A man was arrested Saturday in connection with the death of 74-year-old Maria Hernandez, who was found tied up in her Upper West Side home on Wednesday, according to police.

Lashawn Mackey, 47, of Brooklyn, was charged with murder, attempted murder, and two counts of burglary, police said.

“I’m innocent. This is not how you do justice,” Mackey said following his arrest. “Ask for the DNA at the scene of the crime.”

Hernandez’s death was ruled homicidal asphyxia with compression of the neck, according to the medical examiner’s office. She was found by her sister lying unresponsive on the floor, bound with rope, and covered with a sheet around 9:55 p.m. on Wednesday inside the apartment on West 83rd Street near Columbus Avenue, police sources told PIX11 News.

Hernandez was bound and gagged, with fractures and bruises on her body, authorities said. First responders pronounced her dead at the scene.

Police sources told PIX11 that Hernandez and her sister, who live in the same building but in different apartments, had gone to a show earlier in the evening and returned home around 6 p.m. A neighbor celebrating a birthday stopped by Hernandez’s apartment with a piece of cake around 6:30 p.m., sources said. That was apparently the last time Hernandez was seen alive.

Around 8 p.m., Hernandez’s daughter tried to get in touch with her but no one answered, according to sources. The daughter called her aunt and asked her to check on Hernandez, leading to the discovery of her body.