The family of slain Harlem mother Christina Hernandez cheered as a judge sentenced her Hispanic boyfriend to 23 years to life for butchering her

But the 25-year-old young mother’s parents remained inconsolable as they described how the killer, 22-year-old Jesus Alejandro, left them broken-hearted. Alejandro stabbed the victim 26 times. Alejandro, of the Bronx, was just 18 when he set upon Christina Hernandez in her Harlem apartment. He later claimed that he did it to stop her from posting a video of him on YouTube. Prosecutors said that there never was a video and described in graphic detail his attack. Assistant District Attorney Jennifer Sigall said that Alejandro stabbed her repeatedly, slit her throat, dragged her body to the oven — which he opened and turned on before trying to flee. Alejandro’s defense had argued that Hernandez and her roommate made fun of him and hid cameras in the walls to make a video they planned to post on the Internet site — something officials said was not true. Alejandro's violence has continued behind bars with an attack on a female correction officer.