Amid the mounting pressure to catch the serial rapist and murderer dubbed the Kensington Strangler, stories of young men who fit the description being stopped on the street by police and forced to submit to random DNA swabs whirl through the neighborhood. "A number of people would say of course that the ends justify the means," says Edward Ohlbaum, a professor at Temple's Beasley School of Law. "If by chance you got the right guy, because of your unconstitutional seizure of that evidence, which is now going to be suppressed.…Because of that unconstitutional violation, we've allowed a criminal to go free," says Ohlbaum.