HOUSTON, Texas (KTRK) -- Authorities are looking for a suspect they say attacked a 74-year-old man in southeast Houston last month.

The Houston Police Department said the robbery happened at about 10 a.m. on Aug. 30 at a convenience store parking lot on Martin Luther King Boulevard.

Police shared surveillance video of the incident that shows the suspect walking up to someone using a walker.

According to HPD, the suspect reached into the 74-year-old man's pocket and forcibly removed his cash. Police said this caused the man to lose his balance with his walker and fall to the ground as the suspect allegedly walked off.

It's video the victim said he didn't know existed until ABC13 knocked on his door. Last month, Juan Armendariz said he went to the store to get lottery tickets when sudde

See Full Page