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MANILA - A third disbarment case against lawyer Lorenzo Gadon, who lodged an impeachment complaint against Chief Justice Maria Lourdes Sereno, was filed before the Integrated Bar of the Philippines (IBP), Friday.

At least 8 Sereno supporters who Gadon cursed and insulted in Baguio earlier this month asked the IBP to revoke Gadon's license to practice law.

Atty. Larry Gadon, pinatatanggal sa pagiging abogado dahil sa pambabastos sa mga tagasuporta ni CJ Sereno sa Baguio City @DZMMTeleRadyo pic.twitter.com/5qLT081NCU

— Zhander Cayabyab (@zhandercayabyab) April 20, 2018

The case was filed after the lawyer refused to apologize for hurling expletives and for raising his middle finger at some Sereno supporters who held a protest at the Supreme Court's Summer Court House in Baguio City.

Gadon earlier said he only cursed back after protesters uttered insults and expletives at him during the Baguio protest.

"Someone even audaciously moved towards our position. He uttered expletives and some insults. So I got distracted from being interviewed. Sila 'yung nauna," Gadon earlier said in an interview on ANC's Early Edition.

"I was thinking of filing a petition in the Supreme Court to disbar me. If this bar thing is the only thing that will constrain me from getting back at them, then I'd rather lose my license," he said.

• 'Sila yung nauna': Gadon says no regrets on cussing protesters

He also threatened to disbar IBP officials who support Chief Justice Sereno.

• Gadon threatens disbarment case vs pro-Sereno IBP execs

The first disbarment case against Gadon was filed in 2016 after he allegedly said that Muslims should be killed to attain peace in Mindanao.

Earlier this year, Gadon earned his second disbarment case after lawyer Wilfredo Garrido Jr. asked the IBP to revoke his license for his arrogance and dishonesty during the impeachment proceedings at the House of Representatives.

- with a report from Zhander Cayabyab, ABS-CBN News