Jeremiah Parker, a former Giants football player, was convicted of manslaughter for partaking in the death of his ex-girlfriend's four-year-old son. Parker had been convicted once before of child endangerment in early June for beating Elijah Kelly in May of 2001. Alluding to Parker's history of abuse, Superior Court Judge Randolph Subryan gave him the maximum sentence of ten years in prison. Jeremiah Parker was first convicted of abusing Elijah, now he's been convicted of murdering the same young boy. …