Robber guilty on 22 counts

LAWRENCEVILLE - Following lengthy deliberations that started last week, a jury on Tuesday convicted a Lilburn man for his role in a violent crime spree that swept across Gwinnett in 2004.

The jury found Mario Alberto Silverio, 22, guilty on all but two of 24 counts presented by prosecutors. His conviction includes a bevy of violent crimes, such as armed robbery, aggravated assault and aggravated sexual battery, said Assistant District Attorney Lisa Jones.

Silverio is accused of leading and supplying guns to a nine-man team of robbers who tied up, tortured, sexually assaulted and shot victims between February and April 2004. The gunmen targeted eight Hispanic families and one Jamaican family across Gwinnett during the tirade, Jones said.

Superior Court Judge Debra Turner is expected to sentence Silverio next week, said Jones. He faces multiple life sentences in prison.

Jones said four members of Silverio's posse have entered guilty pleas, two suspects are awaiting trial and one man has been convicted of a role similar to Silverio's. He was sentenced in June to six life sentences plus 211 years.

Silverio and his alleged accomplices were arrested in late April 2004 at separate residences. He has remained at the Gwinnett County Jail without bond since.