PHILADELPHIA - Alhassane Barry, Philadelphia police officer who was killed Sunday in a double shooting outside an after-hours lounge while off-duty, was laid to rest on Monday. A memorial service for Barry, 29, was held Monday morning at the Fouta Islamic Center of Philadelphia on South 71st Street. Barry will be buried at the Friends South Western Burial Ground in Upper Darby, according to a funeral announcement. Barry, a two-year member of the Philadelphia Police Department, was killed in a double shooting outside an after-hours lounge on the 7200 block of Elmwood Avenue. A second man, 35, was also struck and remains in critical condition. Surveillance video shows the moments before and after the shooting. You can see several groups of people standing on the sidewalk as a police car drives by 7244 Elmwood Avenue. Not even 20 seconds later, a fight appears to break out, then you can see people running and ducking for cover. After the shooting, the video shows an individual who law enforcement sources believe to be the shooter, in a mask, appearing to hold a gun, bend down to possibly pick something up and run away. Ten seconds later, police arrive.