For JI: When did you tell your girlfriend about this side job that would keep you away from home at an odd time? The day before, the week before....
Also has your girlfriend ever assaulted you?
For DB: Were you really home that night after the neighbor left?
Do you have a drinking problem?
Has your boyfriend ever assaulted you?
For the boys: Does Deborah only let you sleep in her bed when Jeremy isn't home? Does she ever play any games with you while you're in bed? What about Jeremy? Do you ever sleep in bed with him?
For the neighbor (SB): What time did you actually leave? Is DB a possessive friend like has been said by other former friends of DB? (There is a link to that possessive friend speculation, it was one of the evening shows, NG or JP, or JVM.)
And about a million others.