NEW YORK (AP) — The parents of Bryan Steinhauer, a Binghamton University student who was beaten into a coma during a bar fight in May, said Thursday at a news conference in Manhattan that they want their son’s alleged assailant to return to the U.S. to face charges.

Richard and Marlene Steinhauer said their hospitalized son is slowly coming out of his coma and has begun to recognize friends and family.

Miladin Kovacevic, a former Binghamton University’s men’s basketball player, was charged with assaulting Steinhauer on May 4 at a bar in Downtown Binghamton. A little over a month later, Kovacevic fled the U.S. for his native Serbia after posting $100,000 bail. Serbian officials have said Kovacevic will not be extradited.

A report in Thursday’s New York Daily News indicated that U.S. officials have demanded Kovacevic’s extradition to the U.S. within 10 days. Kovacevic recently signed a basketball deal with a local Serbian club.