Complex sentence: Detractors of the report claim that Clifton draws data only from media reports, but in fact the report is multi-sourced, with information taken from police reports, animal control reports, witness accounts, victim accounts in many instances, and hospital reports.
Split into simpler sentences: Detractors of the report claim that Clifton draws data only from media reports. The report is multi-sourced, with information taken from police reports, animal control reports, witness accounts, victim accounts in many instances, and hospital reports.