LAKELAND, Fla. – Dwayne Knowles, 61, of Lakeland, was arrested on Monday afternoon for allegedly attempting to murder a man at Saddle Creek Campground. Knowles told detectives he was “fed up” with the victim, who he claimed had stolen a speaker from him days earlier. Around 2:15 pm, Knowles drove his white Ford F-150 directly at the 34-year-old victim, striking him with the vehicle. He then exited the truck and began punching the man in the head. Read: Caught On Camera: Man Arrested For Stealing iPhone At Lakeland Dollar General When the victim’s 78-year-old grandmother tried to intervene, Kno…