Man's terrifying baseball bat rampage through Myer causes $14,000 in damages

Seven News has obtained dramatic new video of a man's savage baseball bat rampage through a Myer story in Sydney.

The shocking footage shows the 52-year-old man clutching a baseball bat and loitering inside the Liverpool store.

After several minutes of pacing around, he suddenly snaps.

Fleeing in fear, shoppers take cover as he swings his baseball bat again and again, smashing shelf after shelf and destroying thousands of dollars worth of expensive perfume in the cosmetics department.

"It is terrifying and, more importantly, it is potentially very dangerous, a person armed with that type of weapon," former NSW Police Assistant Commissioner Alan Clarke said.

Once a safe distance away, shoppers began recording the incident on their phones.

While everyone else is standing back, two shoppers decided to put a stop to it.

One grabs the bat, dragging the man off, while the other pounds his head and shoulders.

The offender, Glen Lloyd Jones was then arrested, only for a magistrate to dismiss the charges under mental health laws.

During the attack, Lloyd Jones ranted about the Pope and Ralph Lauren.

Outside court, Lloyd Jones said he was "very remorseful and sorry for what I did."

While Myer has sought compensation for the $14,000 damage, the magistrate said there was nothing she could do to force Lloyd Jones to pay.

Former Assistant Police Commissioner Alan Clarke says if shoppers didn't intervene, people could have been injured.

"We need security to have good communication, good public space monitoring and good response," he said.

Myer said in a statement it was pleased with the way everyone had responded in such a challenging and confronting situation.