NEW ORLEANS (CBS) – A second young man has been arrested in connection with the brutal beating of two Boston area tourists in New Orleans last weekend.

Joshua Simmons. (Image credit: NOPD)

Joshua Simmons, 18, was taken into custody Tuesday, a day after 21-year-old Dejuan Paul was arrested. Investigators say a total of four men were involved and they have identified the other two they’re still looking for.

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Dejuan Paul (Image credit: NOPD)

James Curran and Tim Byrne were walking in the French Quarter heading back to their hotel just before 9 p.m. Saturday when they were knocked to the ground by two men.

The violent attack was captured on surveillance video.

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Both were robbed of their phones and wallets before all four thieves ran away. Byrne remains in a coma in critical condition. Curran is out of the hospital.

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They were in New Orleans for the General Assembly of the Unitarian Universalist Association, the annual meeting of the liberal religious association.