The victim – a 47-year-old Cambridge man – was stabbed in the leg at approximately 11:30 p.m. He was treated on-scene by Officers and medics with the Cambridge Fire Department and then transported to a local hospital with potentially life-threatening injuries. After conducting an investigation and speaking with witnesses, Jose DeLeon, 54, 820 Massachusetts Avenue, was arrested at his residence without incident. He will be charged with Assault to Murder. A knife was recovered by Officers.