Thieves raided supermarkets and electrical shops during 55-day spree . 26-man gang used pink umbrellas for disguise and fled in getaway cars . They also threatened shop workers with hammers , knives and screwdrivers . Liam Bell , 19 , Marcus Morgan , 21 , Ashleigh Evans , Four and 22-year-old Trea Richardson , all from West Midlands , pleaded guilty to conspiracy to rob .
Thieves raided supermarkets and electrical shops during 55-day spree . Four-man gang used pink umbrellas for disguise and fled in getaway cars . They also threatened shop workers with hammers , knives and screwdrivers . Liam Bell , 19 , Marcus Morgan , 21 , Ashleigh Evans , 26 and 22-year-old Trea Richardson , all from West Midlands , pleaded guilty to conspiracy to rob .