I knew someone with ADHD, he also had Asperger's but he also had ODD and I think he had conduct disorder because he behaved very much like a psychopath. Pathological liar, manipulative, used violence to get his way, bullied other kids, bullied his mother and abused her so she was afraid of him and he was in control of her, he threw an ax at my brothers, he also bragged to me about hurting other kids in his school who were defenseless and broke their bones and had no remorse. These were all handicapped children he would hurt. He also had anger issues and got angry easily. This kid had been in and out of hospitals and was kicked out of public school. He definitely had more than just Asperger's.
I read that ODD can lead to conduct disorder and it can lead to APD in adulthood.
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Son: Diagnosed w/anxiety and ADHD. Also academic delayed and ASD lv 1.
Daughter: NT, no diagnoses. Possibly OCD. Is very private about herself.