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LI illegal migrant stabbed upstairs neighbor 50 times before knifing co-worker at Wendy’s — his bizarre motive revealed

li-illegal-migrant-stabbed-upstairs-neighbor-50-times-before-knifing-co-worker-at-wendy’s-—-his-bizarre-motive-revealed
LI illegal migrant stabbed upstairs neighbor 50 times before knifing co-worker at Wendy’s — his bizarre motive revealed

A deranged illegal immigrant stabbed his upstairs neighbor 50 times inside their Long Island apartment building – all because her high heels made too much noise, prosecutors said Tuesday as he pleaded not guilty to slaughtering two women

Rony Yahir Alvarenga Rivera, 22, allegedly told cops that he first hacked neighbor Eddy Raquel Hernandez Castillo to death on April 30 because the racket she made drove him nuts.

Rony Alvarenga Rivera in court during his arraignment.

Rony Yahir Alvarenga Rivera, 22, at his arraignment hearing in Mineola on June 2, 2026 for for the alleged murder on Long Island. Dennis A. Clark for NY Post

Mugshot of Rony Yahir Alvarenga Rivera, who allegedly stabbed two women to death.

Rivera allegedly stabbed his upstairs neighbor 50 times in April. Nassau County Police Department

“He told her he was annoyed by the noise that she was making, wearing high heels and talking loudly on the phone,” Nassau County District Attorney Anne Donnelly told reporters. “When he was arrested, his clothes were full of blood.”

Rivera, an immigrant from El Salvador, entered the US illegally as an unaccompanied 12-year-old in 2016, according to federal authorities.

Nassau prosecutors said the accused killer later told detectives that he knew he would get caught after the grisly slashing – so he planned a second fatal attack.

Shortly after midnight on May 1, Rivera allegedly drove to his job at a Lynbrook Wendy’s and waited outside by a dumpster for nearly a half hour before he ambushed coworker Ana Maria de Aguila Cordova, a 42-year-old mother of three, when she came out to take out the trash.

Rony Alvarenga Rivera, accused of stabbing two women to death, appears in court with two officers.

Rivera allegedly murdered his neighbor because of the sound her high heel shoes bothered him. Dennis A. Clark for NY Post

Rony Alvarenga Rivera, accused of stabbing two women to death, walks through a hallway.

Castillo’s family members in court for the hearing on Tuesday. Dennis A. Clark for NY Post

The grey house at 90 West Mineola Avenue with a red brick stoop, white door, and bay window.

The Valley Stream house where the murder took place. Gregory P. Mango for NY Post

Rivera had a “beef” with Corodova and felt “disrespected” by her, and stabbed her upwards of 30 times during the bloody assault, the DA’s office said.

The maniac then called the cops on himself from an area 7-Eleven, police said.

Rivera, 22, allegedly confessed to both slayings, but pleaded not guilty as he was arraigned on murder and other charges in Nassau County court on Tuesday.

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