Jussie Smollett's $3,500 check, texts to brothers before alleged attack obtained by ABC News originally appeared on abcnews.go.com

ABC News has obtained a copy of a $3,500 check apparently written by "Empire" actor Jussie Smollett to Abimbola Osundairo, one of the two brothers who police say helped stage an attack on Smollett in Chicago last month.

Meanwhile, Chicago Police Superintendent Eddie Johnson, appearing exclusively on ABC's "Good Morning America" on Monday, doubled down on his contention that the 'Empire' star fabricated the account.

The check's memo line reads, "5 week Nutrition/Workout program (Don't Go)."

The check was dated Jan. 23, six days before Smollett claims he was attacked in a hate crime. A copy of the check was first published online by TMZ.

Sources close to Smollett told ABC News the actor was starting to train for an upcoming music video titled "Don't Go," in which he had to appear shirtless. ABC News obtained a calendar entry of Smollett's that indicates the video was scheduled to be filmed Feb. 23.

The $3,500 check was $600 per week for the workout plan, plus $100 per week for the nutrition plan, over five weeks, a source close to Smollett told ABC News.

(MORE: Jussie Smollett will be removed from final 2 episodes of 'Empire')

PHOTO: A copy of a $3,500 check that Jussie Smollett apparently wrote out to Abimbola Osundairo on Jan. 23, 2019. (Obtained by ABC News) More

'There's a lot more evidence'

Johnson said the Osundairo brothers told police that Smollett gave them a $3,500 check to carry out the elaborate scheme. But there is more to investigators' confidence in their conclusion that the public has yet seen, he said.

"Let me tell, you, Robin, there’s a lot more evidence that hasn’t been presented yet, and does not support the version he gave," the police chief told "GMA" anchor Robin Roberts. "There’s still a lot of physical evidence, video evidence and testimony that just simply does not support his version of what happened."

Johnson made a point to note that statements about the case are not opinions, but based rather on a surfeit of evidence gathered by investigators before the actor was charged.

"It's important for people to recognize that it's not the Chicago Police Department saying he did something, it's the evidence, the facts and the witnesses that are saying this," he said.

ABC News obtains text messages

ABC News has also obtained copies of text messages apparently between Smollett and one of the Osundairo brothers, whom he calls "Bon," in which the two discuss exercise and meal plans in the days preceding the alleged attack.

In one of the texts, dated Jan. 25, Bon writes, "This is the meal plan and the breakdown of macronutrients. Also includes projected fat loss."

The copies of the text messages also were first published online by TMZ.

PHOTO: A copy of text messages apparently between Jussie Smollett and one of the Osundairo brothers, whom he calls 'Bon.' (Obtained by ABC News) More

PHOTO: A copy of text messages apparently between Jussie Smollett and one of the Osundairo brothers, whom he calls 'Bon.' (Obtained by ABC News) More

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