By Trent Masenhelder, TDNAus/NZ The racing community is in mourning following the tragic news that much-loved jockey Dean Holland passed away on Monday. The 34-year-old was involved in a fall during the opening race at Donald in country Victoria on Monday and died later that day. Holland fell when his mount, the Tony and Calvin McEvoy-trained Headingley (Aus), who was racing in second place, clipped the heels of the leader Kumicho (Aus) as the runners turned for home in Race 1. Fellow jockey Alana Kelly was dislodged from her mount...