Authorities say preliminary evidence shows a stabbing that occurred Thursday in Glendale may be related to a series of robberies that happened in Phoenix later the same day.
Detectives say the four suspects may also be involved in up to half a dozen robberies in Glendale in the past month.
All four are described as being Hispanic males and ranging in age from 16 to 25. Two are said to be between 5 feet 8 inches and 5 feet 11 inches tall. A third is described as 6 feet to 6 feet 5 inches and heavy-set.
Police say are also searching for a silver Chrysler PT Cruiser.