Bowen, who arrived in Louisville last summer and worked out with the team, was projected to be one of the Cardinals' starters and top players, a possible replacement for Donovan Mitchell.
Unless granted some form of hardship waiver, since Bowen was at Louisville, he will have to sit out a season before being eligible to play for the Gamecocks.
"I trust the people I work for and they wouldn't have signed up for something that would have brought something negative", Martin said.
A top basketball recruit, whose unexpected decision to commit to Louisville became a focal point in the FBI's investigation into corruption in college basketball, has transferred to SC, the school announced Wednesday.More news: Sourav Ganguly disagrees with Virat Kohli's comments after 1st Test loss
More news: Martin O'Neill And Roy Keane On Verge Of Irish Exit
More news: White House doctor: Trump in 'excellent health'
USC coach Frank Martin announced on Wednesday that Bowen, a 6-7, 195-pound forward from La Porte, Ind., has enrolled at USC and has joined the Gamecocks. He will do that now, all the while knowing there are questions out there concerning what happened at Louisville and exactly what part, if any, he played in that.
"The way it's been expressed to me is that the young man has been cleared by the FBI", Martin said.
USC athletics director Ray Tanner said, "What better coach is there to help Brian grow as a student-athlete and more importantly as a young man than Frank Martin and his staff?" He is a strong, athletic small forward, who can really shoot the ball and rebound. I have the utmost confidence in South Carolina's compliance and ultimately the NCAA. The 6-foot-7 wing from La Lumiere School in La Porte, Ind., was a high school teammate of fellow 5-star forward Jaren Jackson, who committed to Michigan State and has already firmly entrenched himself atop National Basketball Association draft boards for next June. The FBI says Bowen's father, Brian Bowen Sr., accepted the money. Louisville AD Tom Jurich also was sacked. "There's no way I'm involved in it".
Bowen, who transferred to La Lumiere High School in IN for the end of his high school career, averaged 21 points and seven rebounds per game as a senior.