Angelo Gargasoulas. Credit:AAP

Ms Judd said Mr Gargasoulas told an associate that he believed he had killed his brother.

Mr Gargasoulas allegedly told another associate: "I'm going to do something drastic, take everyone out. Watch, you'll see me tonight on the news."

Mr Gargasoulas returned to his mother's apartment where he convinced a friend, Akiir Muo, to get into his car by threatening to kill himself, her and his mother if the police came.

Akiir Muo. Credit:Eddie Jim

He repeatedly held onto her hand telling her he would not let her out of his sight

At around 10am, Mr Gargasoulas was being followed covertly by unmarked police cars as he drove through the city.

At 11.30am, the "situation changed" when Mr Gargasoulas realised he was being followed. He signalled to police with his hand to approach but then sped off towards Clarendon Street.

The pursuit was called off.

Around 11.37am, members of Victoria's Police Critical Incident Response Team approached the car with weapons drawn in Southbank. Mr Gargasoulas allegedly pushed Muo out of the car and sped off.

After midday, Mr Gargasoulas was seen by two members of the public in Yarraville. He allegedly said: "You'll see me on the news tonight."

He headed back to the city via the West Gate Bridge.

Mr Gargasoulas, who had been talking and texting a police officer, sent the message: "I'm telling you, you're making a big mistake" after he was told police were behind him.

The court is going to take a 15-minute break.

The jury is leaving the court.