A jury found Mathew Borges guilty Tuesday of beheading his Lawrence High School classmate Lee Manuel Viloria-Paulino, ending the 10-day murder trial in Salem Superior Court.
Borges, 18, was found guilty of first-degree murder with premeditation and extreme cruelty and atrocity. He faces 25 to 30 years in prison with the possibility of parole after 30 years, according to the Essex County District Attorney’s office.
Viloria-Paulino was 16 when Borges killed him and left his decapitated body by the Merrimack River.
Prosecutors relied heavily on social media and text conversation as they presented their case against Borges. The defense did not call any witnesses and Borges did not testify on his own behalf.