Beverly Hills police say the pair, Shaha Mishaal Adham and Brian Scofield, surrendered themselves to police on Monday afternoon.
Adham is suspected of shooting 39-year-old /*Scott Ruffalo*/ a week ago. His condition was not updated Monday.
Authorities had issued an attempted murder arrest warrant for the 26-year-old.
Scofield is being held on a misdemeanor traffic warrant. Jail records did not indicate whether the pair have attorneys, but did show that a court date for Adham has been tentatively scheduled for Wednesday.
/*Mark Ruffalo*/'s publicist declined to comment.