A man accused of stomping on the head of a shooting victim outside a boxing match at the Melbourne Pavilion wants to be freed on bail despite police fearing he could "disappear".

Ali El Nasher is seeking bail in Melbourne Magistrates Court, charged with the attempted murder of Joseph Abouchaya outside the Kensington boxing event on March 1.

Police at the scene of the fatal shooting outside the Melbourne Pavilion in Kensington in March. Credit:Joe Armao

In court on Tuesday, Detective Senior Constable Matthew McKenzie described the public shooting as an "escalation" in an ongoing turf war between two gangs.

A month before the fatal shooting, two rival gangs peppered bullets at each other as they drove along a suburban Brunswick street on February 5.