You also are making assumptions that may be based on misinformation.
We are privy to what Lisa's parents are NOT doing. They are not sitting down individually with detectives today to answer questions. That's fact, not misinformation as is the fact they cancelled. Seems to be a pattern of evasiveness on their part and yes, I am going to use their actions to make an assumption or two or three. I think the reason the lawyer cancelled the presser is because she knows she can not represent both JI and DB during LE interviews.
JMO
You don't know WHY. There may be a valid reason. There may not be. An opinion is simply not a fact, and neither is a rumor.