It is with a sad heart that I pass on this information:

Copied from message on the Chicago Aikikai page:

Friends, it is a sad day for Choate Sensei passed away this morning. We do not have any details as of yet regarding arrangements and will let people know as soon as we find out.

One request from Choate Sensei's family is that people not call his cell phone please contact Stephen Weinberg if you have questions or need anything.

Choate Sensei was a tremendous teacher and practitioner and he will be sorely missed by all of us who have trained with him and benefited from his mentoring, friendship, and vision.