Former rebel Gustavo Petro has won the Colombian presidential election

Former rebel Gustavo Petro narrowly defeated a political outlaw on Sunday

Becoming the country's first left president is ushering in a new era of Colombian politics.

In his third attempt to win the presidency, Senator Petro received 50.48% of the vote.

Real Estate Magnet Rodolfo Hernandez 47.26%

According to the results announced by the election officials, almost all the ballot papers were counted.

Petro's victory underscored a sharp shift in the country's presidential politics

The Left has long been ignored for its alleged links to the armed conflict.