By Brad Segall

NORRISTOWN, Pa. (CBS) – An 18-year-old northeast Philadelphia man has been found guilty of taking part in a violent home invasion that terrified a 77-year-old woman inside her Huntingdon Valley, Pa. home in August of last year.

READ MORE: WATCH LIVE: Philadelphia DA Larry Krasner To Hold News Conference To Denounce Legislation Targeting LGBTQ Youth

A Montgomery County judge convicted Anibal Pastor of charges that included robbery, burglary, conspiracy, and aggravated assault. Pastor, along with 20-year-old Jeffrey Lopergolo broke into the house on McFadden Drive and stole jewelry, cash, and guns.

READ MORE: Missing 1-Year-Old Amira Johnson Found Safe, Philadelphia Police Say

The guns have never been recovered. During the home invasion, prosecutor John Walko says they terrorized the homeowner.

“The victim relates that this was a horrific experience looking up and seeing two young men in her bedroom with masks demanding money, striking her on the head, macing her.”

MORE NEWS: PA Department Of Environmental Protection Responds To SCOTUS Ruling That Curbed EPA’s Ability To Fight Climate Change

Walko says they will be looking for a lengthy state sentence for Pastor. Lopergolo has already been sentenced to five to ten years. Walko says a key piece of the evidence was Pastor’s written confession which the judge ruled was given voluntarily and freely and would have been admitted had the case gone before a jury.