The arrest of one of Mexico's most dangerous gang leaders is being viewed as a major step in the effort to stop violence in the Baja California region, but some said his capture won't bring about sudden change, 10News' Mitch Blacher reported.Eduardo Teodoro Garcia, also known as El Teo, is a man Mexican authorities said is linked to hundreds of kidnappings and at least 300 killings -- many of which took place in or around Tijuana.Mexican authorities said El Teo's gang is so dangerous the federal officers who arrested him continue to conceal their identities.Even with the arrest, some experts said bringing El Teo down won't stop the violence."Is Tijuana now a safer place because he's out of the picture?" asked Blacher.Human rights attorney Octavio Rodreguez said, "I don't think things are going to change suddenly just because of the arrest of El Teo."Rodreguez, who does research for the University of San Diego, said the Mexican government has too narrow a focus by only arresting or assassinating the highest level cartel officials, as they've done in the past year."If you take out the worst of the worst, does that mean there are 10 other guys waiting to take his place?" asked Blacher.""Sadly, yes," said Rodreguez. "If you cut the head, there are 10 more people who want to be in that place and are going to fight to be in that position."El Teo came to power in this way. When his predecessor's in the Arellano Felix drug cartel were killed or captured by the government, Garcia began his violent effort to gain control -- control he maintained until he was caught 900 miles south of Tijuana.El Teo faces numerous charges in Mexico, but has not been charged with any crime in the U.S.