Andrus and at least four other current or former Gary officers are suspects in the March 18th drive-by at house in Portage.
Portage police say that the shooting occurred hours after Andrus and the others got into a fight outside a bar in Hobart. Police allege the four had been drinking as they celebrated St. Patrick's Day.
Portage investigators recovered numerous spent shells and some were linked to Andrus' duty weapon.
There was no telephone listing for Andrus in the Hobart area.