Police reviewing social media video as probe continues into fatal shooting that wounded officer

PHILADELPHIA — Philadelphia police said they were reviewing a video posted to social media as part of their investigation into a shooting at a store that injured one officer and ended with another officer fatally shooting the gunman.

The video was taken by a witness who started recording after officers got into an argument with 28-year-old Alexander Spencer on Friday evening. Authorities have said Spencer fired a shot that struck an officer in the thigh.

Two officers patrolling the Fairhill section of the city entered the store and approached a group of men, according to a police news release. While they tried to stop one of the men, Spencer got into an argument with an officer.

After Spencer shot the officer, the other officer returned fire, according to the release. However, it is unclear in the video who fired first.

Spencer was taken to a hospital but was pronounced dead a short time later. The injured officer remained hospitalized in stable condition Monday.

The names of the two officers have not been released. The injured officer has been with the force for nine years and the officer who shot has been with the force for five years.

Authorities have not said why the officers tried to stop Spencer or what led to the confrontation.

Meanwhile, authorities were still searching Monday for Jose Quinones-Mendez, 42, who they said fled the store with the gun that wounded the officer. Quinones-Mendez faces several charges, including obstruction of justice and tampering with evidence. He is considered armed and dangerous.