That's a great question, Dan. One that you will never get a REASONABLE answer to.
Earlene Roberts was very specific when she said Oswald was zipping up a jacket as he went out the door. On 11/22/63, she also told a reporter that Oswald left the house wearing a short grey coat.
I was interested because of the testimony of Mrs Johnson:
Mrs. JOHNSON. No; after these officers came in, well, then she began to tell them that he did come rushing in and she had gotten a phone call or had made one, anyway, she was on the phone--no, there was someone called her, that's what she said, said someone called her and she says, "Did you know that the President had been assassinated" and she says, "Why, no" and she says, "Well, it's on the television now" and she says, "I will run and turn it on" and she run in and turned this television on to get this information and this Oswald walked in hurriedly and she said, she said to him, "You seem to be in a hurry." She was the only one in that place. She said he didn't say a word but went on in his room and
she said he changed his little zip-up coat, way I understand it, and just went right back out. He evidently got the gun; now, we don't know.
Mr. BALL. Did she tell the officers that?
Mrs. JOHNSON.
Yeah, she told the officers that.
She confirms that Roberts told the police Oswald had changed into his "little zip-up coat". It's not a detail she brought up months later, it's something she told officers on the day.
I can't think why Roberts would mention this if it didn't happen.