Unemployment Insurance overpayment. Serious Q? need help.

[woofless]

Disclaimer: The person I am talking about is NOT me.

Joe lost his job of 26 years (Reduction in Forces). He filed for unemployment and began to collect. He got his stuff together and moved to the adjoining state. Eventually he got a job at less than half the pay he had previously earned. He continued to file for unemployment from State A while living in State B (I know, I know). After about 4 months Joe quit his job due to lack of training and harrassment. He collected unemployment until the fund was depleted. He remains unemployed. Now state A wants an explanation for the money he earned at the new job and a reason why he quit. State A knows what Joe was paid each week he worked in State B even though Joe did not claim the income on his tax return (I know, I know). The employer in State B never sent Joe a W-2 by the way. Q: Can state A collect from Joe while he is living in State B and how? What happens if he blows them off? Anyone know how this stuff works? I have never collected unemployment and am clueless. This is serious and any input would be greatly appreciated. Thanks.

Woof