Boyfriend used baseball bat to beat pregnant girlfriend to death, left her slumped at bottom of stairs and said she fell

A New Jersey antheral has admitted to beating his pregnant girlfriend to decease "with a shot bat" astatine their location and past staging a country to marque it look similar she fell down a staircase, according to prosecutors.

Boris Lainez-Rosales, 28, of Pleasantville, pleaded blameworthy past week to 1 number of first-degree murder successful transportation with the decease of his live-in girlfriend, Leslianette Quintana-Betancourt, 25, besides of Pleasantville.

"In pleading guilty, the suspect admitted that connected December 2, 2024, helium assaulted the victim, who was his home partner, and large astatine the time, with a shot bat astatine his location successful Pleasantville, causing her death," the Atlantic County Prosecutor's Office says successful a press release.

A probable origin affidavit obtained by the Courier-Post describes however a witnesser who was successful the couple's location heard Lainez-Rosales and Quintana-Betancourt arguing from 9:30 p.m. to 11 p.m. that night. The idiosyncratic went downstairs to spot what was happening and was "escorted backmost upstairs by Lainez-Rosales, who said everything was fine," according to the affidavit.

"A abbreviated clip aft that, Lainez-Rosales came up the stairs to the main surviving quarters and utilized the witness's telephone to telephone 911," the affidavit says.

When cops and archetypal responders arrived, they recovered Quintana-Betancourt's assemblage astatine the bottommost of a 12-step staircase. She had aggregate blunt-force injuries to her face, arms and abdomen, arsenic good arsenic a ruptured placenta. Her unborn kid did not survive.

"There were nary humor stains successful and astir the stairwell," the affidavit says, according to the Courier-Post. Police said Quintana-Betancourt's assemblage "smelled of bleach."

While speaking to cops, Lainez-Rosales had cuts connected his hands. He claimed Quintana-Betancourt fell down the stairs and that helium called constabulary afterward.

Investigators searched the location and recovered bloodstains passim the couple's basement surviving country and connected the walls. Investigators detected the odor of bleach passim the flat on with "evidence of attempts to cleanable up biologic evidence," per the affidavit.

Police recovered a shot bat successful the backyard that had bloodstains connected it and recovered a trash container successful Lainez-Rosales' car "with imaginable hairsbreadth attached," according to the affidavit. He was arrested and aboriginal indicted for Quintana-Betancourt's execution successful February 2025.

"You were truthful blessed astir becoming a mom," a person wrote connected Quintana-Betancourt's tribute partition for her online obituary. "You were specified a saccharine and benignant young woman that had a laughter and grin that would brighten up a room," the pal said.

Lainez-Rosales' plea calls for a recommended condemnation of 30 years without the anticipation of parole, according to the prosecutor's office. He is scheduled to beryllium sentenced connected July 31.