I hope he can get a bit more help, Snoozy. As I recall SLU's sticker price is about $35,000. I'm not sure what his family's circumstances are. If they have any financial need, there'll be some help there. There are a few other things he can do as well...
-Identify any "special circumstances" in his case. (Unusually high private school tuition payments, unusually high family medical or dental expenses, parents in the process of separation or divorce, etc.) Special circumstances can possibly increase his financial aid package.
-If the first offer is not pretty extraordinary, he can always appeal. In so doing, it will not rescind the original offer--and they may consider increasing it. Happens all the time. It will require a pretty effective appeal letter, written fairly quickly after receiving his award letter from SLU.
A 34 is an absolutely terrible score for the SAT, considering the highest you can get is 2400... So I'm sure you must be referring to the ACT. And, yessirrebob, with 36 being the highest possible, that's an amazing ACT score! Not surprised they're kicking in with a scholarship.