worksheet past perfect 2

Read the text . Why was the man stupid?

Listeners to a radio programme in Chicago were very surprised when a man phoned the programme and said that he was a bank robber. At the beginning of the programme , the presenter had asked listeners to call in and confess to any " small crimes" they had commited The man described the crime exactly.Five months earlier, he and four other man had gone to a bank in Chicago and had stolen $81,000.A woman who worked in the bank had also helped in the robbery.The man obviously very proud of himself.He didn´t give his name on the radio , but police later discovered the man´s telephoned number and arrested him.

Look at the verbs in bold in the text.Did these events happen before or after the man called the radio station ?