Investigators today pored  over surveillance video as they  sought a suspect who killed three people  and wounded two others in a pair of  shootings in Downey  that police said targeted members of a family who owned a  fire  extinguisher business.
 
The gunfire erupted around 11:10  a.m. Wednesday  at United States Fire  Protection in the 8700 block of Cleta Street,  and a short time later at a home  two blocks away, according to police and  Downey Fire Department spokesman Jason  Patao.
 
Two people died at the business -- one male and one female -- while   another female victim was killed at the home. Two other people were wounded  and  were listed in critical but stable condition.
 
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