PASCO COUNTY, Fla. -- Alexander Perez, the 14-year-old who allegedly forced his way into the Holiday home of Robert Walker and assaulted the 81-year-old man on September 23, will be charged as an adult, Pasco County Sheriff's Office reported Thursday.

Perez, who is in custody at the Land O'Lakes jail, is being held on $500,000 bond.

Walker was allegedly beaten in the face multiple times by Perez, who later stole his wallet and pants and fled the area. Perez was picked up by deputies later that day.

Walker was treated at the scene by Pasco County Fire Rrescue but died fewer than 24 hours after the assault. PCSO is working with the Medical Examiners Office to determine if additional charges are to be filed against Perez.