Deputies on Thursday arrested a man in connection with an assault caught on camera at a Hollywood Metro station, officials said.
In the video, a man is seen dealing an unprovoked blow to the head of an older man standing near the edge of the Hollywood and Vine Metro Red Line platform, knocking him down. Unseen in the video is the fact that the suspect also kicked the victim while he was down, according to witness Lake Cunningham.
James A. Hanson, a 32-year-old Culver City resident, admitted to being the perpetrator in the Tuesday morning attack and was arrested around 1 p.m., according to a statement from the Los Angeles County Sheriff's Department.
Hanson was booked on an assault with a deadly weapon charge, with his hands and feet being the weapon, authorities said. His bail has been set at $50,000 and his arraignment is expected to occur Monday or Tuesday next week.
The crime was originally reported to authorities around 1 a.m. Tuesday as a witness called to alert law enforcement, the release said. Deputies and paramedics responded within minutes but cleared the scene after not finding the victim, suspect or any witnesses willing to share information, officials said.
The Sheriff's department was able to launch an investigation after KTLA tipped off deputies about a cell phone video of the incident posted on social media by Cunningham, who described it as a "senseless crime." Based on this evidence, officials were able to apprehend Hanson with the assistance of the L.A. County Metropolitan Transportation Authority, deputies said.
Media coverage of the assault also promoted the victim to come forward, authorities said. Officials said he was transported to a local hospital to treat injuries sustained in the attack, but they did not disclose the nature or extent of his injuries.
Correction: An earlier version of this article included a misspelled name. It has been updated.