Update: Quincy man killed in suspected gang shooting spree

A 2008 photo of Brandon Thomas, booked for a misdemeanor offense in Peoria.

A Quincy man's murder in Peoria is prompting a city-wide crack-down on gang activity.

Brandon Thomas, age 25, was found shot on the city's South side last Tuesday.

His death marked the third homicide in that area in five days.

Peoria's mayor and police chief have announced they are stepping up patrols, targeting up to 100 people wanted for gang violence and related charges.

Thomas' father and mother live in Peoria, according to the Peoria County coroner.