Missing a piece of puzzle (Part3)

He smile and pats his shoulder. "I'm not convinced. It wasn't convincing at all." he said. "By the way, I'll do my report as an investigator of her case you begged for." he stood-up; put on his bonnet and eyeglasses, he pulled-up his jacket to make it three-forts. He opens his bag pack and pull-out a pencil and bond paper. He draws a road, half of a building, a pedestrian lane. "Listen carefully because this is my whole report." he said without looking at Rovi's face. "This is the place where the crime scene happened." he pointed the drawing on the paper. He drew three people. "This is Grace, the subject and the suspect." he clears his throat. "Grace is about to cross the road when she saw the subject will also cross the road. They were using this pedestrian lane, Grace isn't feeling well. Due to the statement of her first physician before, she forgot to take her medicine for her heart disease, that's why she's not feeling well." he said then looked at Rovi who's seriously looking a