Jonathan , who had been the Deputy Governor of Bayelsa State , succeeded Governor Diepreye Alamieyeseigha , who was impeached by the Bayelsa State Assembly after being charged with money laundering in the United Kingdom . Jonathan , previously the Deputy Governor of Bayelsa State , succeeded Governor Diepreye Alamieyeseigha , who was impeached by the Bayelsa State Assembly after being charged with money laundering in the United Kingdom .