The man Baker describes as wearing a “light brown jacket” is in question if the encounter with PM takes place 5 to 10 seconds post Darnell film cut, since PM appears to have the sleeves rolled up.
If Oswald is PM and can get inside the TSBD lobby and make it to the front storage room, it’s conceivable he left his jacket there and could put it on just before meeting Baker in the lobby at the front staircase as Oswald comes out of the storage room.
However, it’s dependent on what time it takes for Baker from his position at the Darnell film cut And Baker actually reaching the front steps and how quick Baker ascends 7 steps with people blocking him and if Baker stops on the landing to wait for Truly to join him, before entering.
The distance from west corner of entrance landing to center of an inward swinging front door is only approx 8ft.
Distance from front door to storage room door is approx 20 ft.
30 ft therefore approx max distance / by 5ft per sec pace = 6 sec
Add 3 sec for pushing front door inward and opening storage room door.
PM thus CAN conceivably be IN the storage room and UNSEEN by Baker at the moment Baker enters TSBD lobby thru the front entrance door.
In 5 more seconds Oswald could conceivably have put on his jacket while in the storage room , and exits about the time Baker crosses 15 ft of looby floor , reaches the front staircase , and Baker draws out his gun as he stated “upon reaching the FIRST staircase.
Mr.Truly now enters the TSBD, sees Baker with gun drawn at the front staircase, runs over and sees Oswald and verifies Oswald is an employee.
So in conclusion, Baker and Truly possibly encountered Oswald INSIDE the TSBD and Oswalds statement of being IN the building “at the time” is not necessarily in conflict with Oswald having momentarily stepped “out” onto the front entrance landing perhaps just 30 sec before the shooting started, then returning INTO the building again just 10 sec( or less ) seconds post shots fired.
The only conflict begins when it’s realized that an Oswald encounter with Baker, by the front storage room on the ground floor makes it impossible that Oswald just came down from 6th floor and traversed 120 ft approx more ground floor distance in only 30 sec fromlast shot fired by theoretical 6th floor shooter Oswald at the SW corner window.
Unless there was a double Oswald😳