Const. James Forcillo is already charged with second-degree murder.
Yatim, 18, was shot dead on July 27, 2013, as he stood aboard an empty streetcar while surrounded by police.
The National Post says the new indictment will be in addition to the second-degree murder count.
Videos of the shooting taken by bystanders and posted online stirred outrage and spurred a report about police use of force during confrontations with people in distress or with a history of mental illness. On the videos, nine shots can be heard following shouted commands for Yatim to drop a knife.
Forcillo, who is out on bail, was suspended with pay, but returned to active duty at Toronto Crime Stoppers in an administrative role in February. He is due in court Wednesday for the setting of a trial date on the second-degree murder charge.
Jury selection in Forcillo's second-degree murder trial is likely to happen next summer, and the trial could start as early as September 2015.
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