Возвращение Мухтара S11E02 - На пути к победе

In preparation for the agility competition, Maxim meets Anna, the owner of Mukhtar's rival dog. On his way home, Maxim chases after a robber who stole a girl's phone. It turned out that three more robberies followed the same pattern: the robber pretends to have a heart attack, asks the girls for a phone and runs away. The criminal manages to be apprehended, but he denies his involvement in the fourth robbery. If not him, then who?