RJ Luis Jr. scored 24 points to lead No. 7 St. John’s to a 76-70 win over Butler in Indianapolis, clinching at least a share of the Big East regular-season title for the first time since 1992.Luis shot 9-for-16 from the field for St. John’s (25-4, 16-2 Big East). Zuby Ejiofor added 12 points and Kadary Richmond contributed 13 points, six rebounds and five assists.Jahmyl Telfort led Butler (13-15, 6-11) with 13 points and seven rebounds. Pierre Brooks II and Boden Kapke each added 12 points. Brooks scored all of his points in the first half.The Red Storm owned a slim lead for much of the first half, although at one point they made 6-of-8 field goals to take a 34-26 advantage.St. John’s led by as much as 10 in the half, but Butler cut the deficit to 38-32 at the break.Luis matched Brooks with 12 points at the break. Butler stayed in it despite shooting just 3-for-16 from beyond the arc in the half.