SAN FRANCISCO (CBS SF) — A 23-year-old man was convicted of multiple felony counts on Monday in connection with a brutal stabbing near San Francisco’s Union Square in 2010, prosecutors said Tuesday.

Oscar Arana was found guilty of aggravated mayhem and assault with a deadly weapon for the attack on Nov. 3, 2010, following the parade celebrating the San Francisco Giants’ World Series victory, according to the district attorney’s office.

According to court testimony, Arana and the then-21-year-old victim were with a group of friends when, unprovoked, Arana came up from behind and stabbed the victim four times in the back, prosecutors said.

One of the stab wounds ruptured the victim’s kidney and spleen and the others left him paralyzed from the chest down, prosecutors said.

After a trial that lasted more than two weeks, a San Francisco Superior Court jury deliberated for about two days before returning the guilty verdicts, although he was acquitted of attempted murder, according to the district attorney’s office.

The aggravated mayhem charge still carries the possibility of a life sentence in prison, prosecutors said. Arana is set to be sentenced in the case on July 29.

“This cowardly and abhorrent act changed the victim’s life forever,” District Attorney George Gascon said in a statement.

(Copyright 2013 by CBS San Francisco and Bay City News Service. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)


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