The suspect police have linked to a string of sexual assaults on children is likely to offend again, according to a Simon Fraser University criminology professor.

"I don't see why he would stop," Professor Eric Beauregard said Tuesday. "Unless he's apprehended."

Beauregard has studied the patterns of child sexual predators, and believes there is a "good chance" the suspect will re-offend.

After the assault of a 6-year-old girl in Surrey on July 3rd, police discovered a DNA match between the suspect and two other sexual assaults against children that occurred years earlier.

Related: Sex assault on girl, 6, linked to several others

The first assault happened in 1995, when a 13-year-old girl was assaulted in the stairwell of a Vancouver elementary school.

The second attack happened in 2007 when two 14-year-old girls were forced into the bushes near 112th and 84th Avenue and assaulted.

The latest attack occurred just three days after Delta Police issued a plea to the public for help solving the previous two cases on June 30. Beauregard says the plea may have caused the suspect to panic, and he reacted by attacking again.

"This might trigger a reaction of going out and committing more sexual assaults because he feels that the police are getting closer," he said. "That's his way to cope."

So far, Surrey RCMP have received about a dozen tips, but they're hoping to get even more - before any more children become victims.

Anyone with information about the suspect or the case is asked to call 604-507-8066.

With a report from CTV British Columbia's Julia Foy