A man suspected of recently robbing a group of people in the French Quarter was arrested Saturday in Gentilly after being identified through surveillance footage and an anonymous tip, New Orleans police said.

Police also arrested a woman who was living with him who is believed to have known about his alleged involvement with the crime but failed to notify police of his whereabouts.

Dewitt Madison, 31, was booked on four counts of armed robbery, police said.

Saria Thomas, 26, was booked on a count of accessory after the fact and a count of obstruction of justice.

The robbery happened about 4 a.m. June 13 in the 1400 block of Bourbon Street, police said.

According to police, Madison and an unknown woman walked up to a group of people. Madison pulled out a gun and demanded the victims’ property while the unknown woman continued to walk up the street to act as a lookout, police said.

Police did not identify the woman.

The victims handed over their belongings and then walked away. At that time, police said, Madison fired into the air.

Madison was arrested about 1 a.m. Saturday in the 1900 block of Filmore Avenue, police said.

Police believe Thomas knew about Madison’s involvement in the robbery and had lived with him for the last several weeks without notifying authorities of his location.

Detective Thomas Perez is in charge of the investigation.